DCE
en conf t ! username R2 password PG1X ! int s0/0/0 ip address 172.16.2.1 255.255.255.252 encapsulation ppp ppp authentication chap clock rate 64000 no shut exit ! end
DTE
en conf t ! username R1 password PG1X ! int s0/0/0 ip address 172.16.2.2 255.255.255.252 encapsulation ppp ppp authentication chap no shut exit ! end
R1(config-if)#do clea ppp all R1(config-if)# *Oct 21 11:35:23.311: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to down R1(config-if)#do ping 172.16.2.2 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 172.16.2.2, timeout is 2 seconds: ..... Success rate is 0 percent (0/5) R1(config-if)#
R1(config-if)# *Oct 21 11:36:06.347: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to up R1(config-if)#do ping 172.16.2.2 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 172.16.2.2, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 28/28/32 ms R1(config-if)#
R2(config-if)#do ping 172.16.2.1 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 172.16.2.1, timeout is 2 seconds: . Success rate is 0 percent (0/1) R2(config-if)#username R1 password PG1X R2(config)# *Oct 21 11:39:34.291: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to up R2(config)#do ping 172.16.2.1 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 172.16.2.1, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 28/29/32 ms R2(config)#
DCE
en conf t ! username wnoguchi password PG1X ! int s0/0/0 ip address 172.16.2.1 255.255.255.252 encapsulation ppp ppp authentication pap ppp pap sent-username wnoguchi password PG1X clock rate 64000 no shut exit ! end
DTE
en conf t ! username wnoguchi password PG1X ! int s0/0/0 ip address 172.16.2.2 255.255.255.252 encapsulation ppp ppp authentication pap ppp pap sent-username wnoguchi password PG1X no shut exit ! end
R2(config-if)#ppp pap sent-username wnoguchi password PG1X PPP: Warning: You have chosen a username/password combination that is valid for CHAP. This is a potential security hole.
R1(config)# *Oct 22 22:48:03.291: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to up *Oct 22 22:48:03.303: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to down R1(config)#clock rate 64000 ^ % Invalid input detected at '^' marker. R1(config)# *Oct 22 22:48:19.419: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to up *Oct 22 22:48:19.431: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to down R1(config)#int s0/0/0 R1(config-if)#clock rate 64000 R1(config-if)#exit R1(config)#username wnoguchi password PG1X R1(config)#do debug ppp authen R1(config)#do debug ppp authen PPP authentication debugging is on R1(config)# *Oct 22 22:49:23.415: Se0/0/0 PPP: Using default call direction *Oct 22 22:49:23.415: Se0/0/0 PPP: Treating connection as a dedicated line *Oct 22 22:49:23.415: Se0/0/0 PPP: Session handle[B5000044] Session id[68] *Oct 22 22:49:23.459: Se0/0/0 PAP: Using hostname from interface PAP *Oct 22 22:49:23.459: Se0/0/0 PAP: Using password from interface PAP *Oct 22 22:49:23.459: Se0/0/0 PAP: O AUTH-REQ id 1 len 18 from "wnoguchi" *Oct 22 22:49:23.463: Se0/0/0 PAP: I AUTH-REQ id 1 len 18 from "wnoguchi" *Oct 22 22:49:23.463: Se0/0/0 PAP: Authenticating peer wnoguchi *Oct 22 22:49:23.463: Se0/0/0 PPP: Sent PAP LOGIN Request R1(config)# *Oct 22 22:49:23.463: Se0/0/0 PPP: Received LOGIN Response PASS *Oct 22 22:49:23.471: Se0/0/0 PAP: I AUTH-NAK id 1 len 26 msg is "Authentication failed" *Oct 22 22:49:23.471: Se0/0/0 PAP: O AUTH-ACK id 1 len 5 R1(config)# *Oct 22 22:49:27.483: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to up *Oct 22 22:49:27.495: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to down R1(config)# *Oct 22 22:49:29.479: Se0/0/0 PPP: Using default call direction *Oct 22 22:49:29.479: Se0/0/0 PPP: Treating connection as a dedicated line *Oct 22 22:49:29.479: Se0/0/0 PPP: Session handle[21000045] Session id[69] *Oct 22 22:49:29.507: Se0/0/0 PAP: Using hostname from interface PAP *Oct 22 22:49:29.507: Se0/0/0 PAP: Using password from interface PAP *Oct 22 22:49:29.507: Se0/0/0 PAP: O AUTH-REQ id 1 len 18 from "wnoguchi" *Oct 22 22:49:29.511: Se0/0/0 PAP: I AUTH-REQ id 1 len 18 from "wnoguchi" *Oct 22 22:49:29.511: Se0/0/0 PAP: Authenticating peer wnoguchi *Oct 22 22:49:29.511: Se0/0/0 PPP: Sent PAP LOGIN Request R1(config)# *Oct 22 22:49:29.511: Se0/0/0 PPP: Received LOGIN Response PASS *Oct 22 22:49:29.519: Se0/0/0 PAP: I AUTH-NAK id 1 len 26 msg is "Authentication failed" *Oct 22 22:49:29.523: Se0/0/0 PAP: O AUTH-ACK id 1 len 5 R1(config)# *Oct 22 22:49:32.515: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to up R1(config)# *Oct 22 22:49:33.543: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to down *Oct 22 22:49:34.535: Se0/0/0 PPP: Using default call direction *Oct 22 22:49:34.535: Se0/0/0 PPP: Treating connection as a dedicated line *Oct 22 22:49:34.535: Se0/0/0 PPP: Session handle[FC000046] Session id[70] *Oct 22 22:49:34.563: Se0/0/0 PAP: Using hostname from interface PAP *Oct 22 22:49:34.563: Se0/0/0 PAP: Using password from interface PAP *Oct 22 22:49:34.563: Se0/0/0 PAP: O AUTH-REQ id 1 len 18 from "wnoguchi" *Oct 22 22:49:34.567: Se0/0/0 PAP: I AUTH-REQ id 1 len 18 from "wnoguchi" *Oct 22 22:49:34.567: Se0/0/0 PAP: Authenticating peer wnoguchi *Oct 22 22:49:34.567: Se0/0/0 PPP: Sent PAP LOGIN Request R1(config)# *Oct 22 22:49:34.567: Se0/0/0 PPP: Received LOGIN Response PASS *Oct 22 22:49:34.575: Se0/0/0 PAP: I AUTH-NAK id 1 len 26 msg is "Authentication failed" *Oct 22 22:49:34.575: Se0/0/0 PAP: O AUTH-ACK id 1 len 5 R1(config)# *Oct 22 22:49:38.587: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to up *Oct 22 22:49:38.599: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to down R1(config)# *Oct 22 22:49:40.583: Se0/0/0 PPP: Using default call direction *Oct 22 22:49:40.583: Se0/0/0 PPP: Treating connection as a dedicated line *Oct 22 22:49:40.583: Se0/0/0 PPP: Session handle[5A000047] Session id[71] *Oct 22 22:49:40.611: Se0/0/0 PAP: Using hostname from interface PAP *Oct 22 22:49:40.611: Se0/0/0 PAP: Using password from interface PAP *Oct 22 22:49:40.611: Se0/0/0 PAP: O AUTH-REQ id 1 len 18 from "wnoguchi" *Oct 22 22:49:40.615: Se0/0/0 PAP: I AUTH-REQ id 1 len 18 from "wnoguchi" *Oct 22 22:49:40.615: Se0/0/0 PAP: Authenticating peer wnoguchi *Oct 22 22:49:40.615: Se0/0/0 PPP: Sent PAP LOGIN Request R1(config)# *Oct 22 22:49:40.615: Se0/0/0 PPP: Received LOGIN Response PASS *Oct 22 22:49:40.623: Se0/0/0 PAP: I AUTH-NAK id 1 len 26 msg is "Authentication failed" *Oct 22 22:49:40.623: Se0/0/0 PAP: O AUTH-ACK id 1 len 5 R1(config)# *Oct 22 22:49:42.639: Se0/0/0 PPP: Using default call direction *Oct 22 22:49:42.639: Se0/0/0 PPP: Treating connection as a dedicated line *Oct 22 22:49:42.639: Se0/0/0 PPP: Session handle[CB000048] Session id[72] *Oct 22 22:49:42.659: Se0/0/0 PAP: Using hostname from interface PAP *Oct 22 22:49:42.659: Se0/0/0 PAP: Using password from interface PAP *Oct 22 22:49:42.659: Se0/0/0 PAP: O AUTH-REQ id 1 len 18 from "wnoguchi" *Oct 22 22:49:42.659: Se0/0/0 PAP: I AUTH-REQ id 1 len 18 from "wnoguchi" *Oct 22 22:49:42.663: Se0/0/0 PAP: Authenticating peer wnoguchi *Oct 22 22:49:42.663: Se0/0/0 PPP: Sent PAP LOGIN Request R1(config)# *Oct 22 22:49:42.663: Se0/0/0 PPP: Received LOGIN Response PASS *Oct 22 22:49:42.671: Se0/0/0 PAP: I AUTH-NAK id 1 len 26 msg is "Authentication failed" *Oct 22 22:49:42.671: Se0/0/0 PAP: O AUTH-ACK id 1 len 5 R1(config)# *Oct 22 22:49:44.679: Se0/0/0 PPP: Using default call direction *Oct 22 22:49:44.679: Se0/0/0 PPP: Treating connection as a dedicated line *Oct 22 22:49:44.679: Se0/0/0 PPP: Session handle[53000049] Session id[73] *Oct 22 22:49:44.707: Se0/0/0 PAP: Using hostname from interface PAP *Oct 22 22:49:44.707: Se0/0/0 PAP: Using password from interface PAP *Oct 22 22:49:44.707: Se0/0/0 PAP: O AUTH-REQ id 1 len 18 from "wnoguchi" *Oct 22 22:49:44.707: Se0/0/0 PAP: I AUTH-REQ id 1 len 18 from "wnoguchi" *Oct 22 22:49:44.711: Se0/0/0 PAP: Authenticating peer wnoguchi *Oct 22 22:49:44.711: Se0/0/0 PPP: Sent PAP LOGIN Request R1(config)# *Oct 22 22:49:44.711: Se0/0/0 PPP: Received LOGIN Response PASS *Oct 22 22:49:44.719: Se0/0/0 PAP: I AUTH-NAK id 1 len 26 msg is "Authentication failed" *Oct 22 22:49:44.719: Se0/0/0 PAP: O AUTH-ACK id 1 len 5 R1(config)# R1(config)# *Oct 22 22:49:46.735: Se0/0/0 PPP: Using default call direction *Oct 22 22:49:46.735: Se0/0/0 PPP: Treating connection as a dedicated line *Oct 22 22:49:46.735: Se0/0/0 PPP: Session handle[4100004A] Session id[74] *Oct 22 22:49:46.755: Se0/0/0 PAP: Using hostname from interface PAP *Oct 22 22:49:46.755: Se0/0/0 PAP: Using password from interface PAP *Oct 22 22:49:46.755: Se0/0/0 PAP: O AUTH-REQ id 1 len 18 from "wnoguchi" *Oct 22 22:49:46.759: Se0/0/0 PAP: I AUTH-REQ id 1 len 18 from "wnoguchi" *Oct 22 22:49:46.759: Se0/0/0 PAP: Authenticating peer wnoguchi *Oct 22 22:49:46.759: Se0/0/0 PPP: Sent PAP LOGIN Request *Oct 22 22:49:46.759: Se0/0/0 PPP: Received LOGIN Response PASS *Oct 22 22:49:46.767: Se0/0/0 PAP: O AUTH-ACK id 1 len 5 *Oct 22 22:49:46.771: Se0/0/0 PAP: I AUTH-ACK id 1 len 5 R1(config)# *Oct 22 22:49:46.775: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to up R1(config)#do ping 172.16.2.2 repeat 1000000 Type escape sequence to abort. Sending 1000000, 100-byte ICMP Echos to 172.16.2.2, timeout is 2 seconds: !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!. Success rate is 99 percent (175/176), round-trip min/avg/max = 28/28/32 ms R1(config)#
R2(config)# *Oct 22 22:51:44.835: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to up *Oct 22 22:51:44.847: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to down R2(config)# R2(config)#int s0/0/0 R2(config-if)# R2(config-if)# *Oct 22 22:51:59.971: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to up *Oct 22 22:51:59.983: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to down R2(config-if)#exit R2(config)# R2(config)#do debug ppp authen R2(config)#do debug ppp authen PPP authentication debugging is on R2(config)# *Oct 22 22:52:54.923: Se0/0/0 PAP: Using hostname from interface PAP *Oct 22 22:52:54.923: Se0/0/0 PAP: Using password from interface PAP *Oct 22 22:52:54.923: Se0/0/0 PAP: O AUTH-REQ id 1 len 18 from "wnoguchi" *Oct 22 22:52:54.927: Se0/0/0 PAP: I AUTH-REQ id 1 len 18 from "wnoguchi" *Oct 22 22:52:54.927: Se0/0/0 PAP: Authenticating peer wnoguchi *Oct 22 22:52:54.927: Se0/0/0 PPP: Sent PAP LOGIN Request *Oct 22 22:52:54.931: Se0/0/0 PPP: Received LOGIN Response FAIL *Oct 22 22:52:54.931: Se0/0/0 PAP: O AUTH-NAK id 1 len 26 msg is "Authentication failed" R2(config)# *Oct 22 22:52:58.943: Se0/0/0 PPP: Using default call direction *Oct 22 22:52:58.943: Se0/0/0 PPP: Treating connection as a dedicated line *Oct 22 22:52:58.943: Se0/0/0 PPP: Session handle[BB000045] Session id[69] R2(config)# *Oct 22 22:53:00.971: Se0/0/0 PAP: Using hostname from interface PAP *Oct 22 22:53:00.971: Se0/0/0 PAP: Using password from interface PAP *Oct 22 22:53:00.971: Se0/0/0 PAP: O AUTH-REQ id 1 len 18 from "wnoguchi" *Oct 22 22:53:00.975: Se0/0/0 PAP: I AUTH-REQ id 1 len 18 from "wnoguchi" *Oct 22 22:53:00.975: Se0/0/0 PAP: Authenticating peer wnoguchi *Oct 22 22:53:00.975: Se0/0/0 PPP: Sent PAP LOGIN Request *Oct 22 22:53:00.979: Se0/0/0 PPP: Received LOGIN Response FAIL *Oct 22 22:53:00.979: Se0/0/0 PAP: O AUTH-NAK id 1 len 26 msg is "Authentication failed" R2(config)# *Oct 22 22:53:03.991: Se0/0/0 PPP: Using default call direction *Oct 22 22:53:03.991: Se0/0/0 PPP: Treating connection as a dedicated line *Oct 22 22:53:03.991: Se0/0/0 PPP: Session handle[58000046] Session id[70] R2(config)# *Oct 22 22:53:06.027: Se0/0/0 PAP: Using hostname from interface PAP *Oct 22 22:53:06.027: Se0/0/0 PAP: Using password from interface PAP *Oct 22 22:53:06.027: Se0/0/0 PAP: O AUTH-REQ id 1 len 18 from "wnoguchi" *Oct 22 22:53:06.031: Se0/0/0 PAP: I AUTH-REQ id 1 len 18 from "wnoguchi" *Oct 22 22:53:06.031: Se0/0/0 PAP: Authenticating peer wnoguchi *Oct 22 22:53:06.031: Se0/0/0 PPP: Sent PAP LOGIN Request *Oct 22 22:53:06.035: Se0/0/0 PPP: Received LOGIN Response FAIL *Oct 22 22:53:06.035: Se0/0/0 PAP: O AUTH-NAK id 1 len 26 msg is "Authentication failed" R2(config)# *Oct 22 22:53:07.007: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to up R2(config)# *Oct 22 22:53:08.051: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to down R2(config)# *Oct 22 22:53:10.051: Se0/0/0 PPP: Using default call direction *Oct 22 22:53:10.051: Se0/0/0 PPP: Treating connection as a dedicated line *Oct 22 22:53:10.051: Se0/0/0 PPP: Session handle[AA000047] Session id[71] R2(config)#username wnoguchi password PG1X *Oct 22 22:53:12.075: Se0/0/0 PAP: Using hostname from interface PAP *Oct 22 22:53:12.075: Se0/0/0 PAP: Using password from interface PAP *Oct 22 22:53:12.075: Se0/0/0 PAP: O AUTH-REQ id 1 len 18 from "wnoguchi" *Oct 22 22:53:12.079: Se0/0/0 PAP: I AUTH-REQ id 1 len 18 from "wnoguchi" *Oct 22 22:53:12.079: Se0/0/0 PAP: Authenticating peer wnoguchi *Oct 22 22:53:12.079: Se0/0/0 PPP: Sent PAP LOGIN Request *Oct 22 22:53:12.083: Se0/0/0 PPP: Received LOGIN Response FAIL *Oct 22 22:53:12.083: Se0/0/0 PAP: O AUTH-NAK id 1 len 26 msg is "Authentication failed" R2(config)#username wnoguchi password PG1X *Oct 22 22:53:14.095: Se0/0/0 PPP: Using default call direction *Oct 22 22:53:14.095: Se0/0/0 PPP: Treating connection as a dedicated line *Oct 22 22:53:14.095: Se0/0/0 PPP: Session handle[F7000048] Session id[72] *Oct 22 22:53:14.123: Se0/0/0 PAP: Using hostname from interface PAP *Oct 22 22:53:14.123: Se0/0/0 PAP: Using password from interface PAP *Oct 22 22:53:14.123: Se0/0/0 PAP: O AUTH-REQ id 1 len 18 from "wnoguchi" *Oct 22 22:53:14.127: Se0/0/0 PAP: I AUTH-REQ id 1 len 18 from "wnoguchi" *Oct 22 22:53:14.127: Se0/0/0 PAP: Authenticating peer wnoguchi *Oct 22 22:53:14.127: Se0/0/0 PPP: Sent PAP LOGIN Request R2(config)#username wnoguchi password PG1X *Oct 22 22:53:14.131: Se0/0/0 PPP: Received LOGIN Response FAIL *Oct 22 22:53:14.131: Se0/0/0 PAP: O AUTH-NAK id 1 len 26 msg is "Authentication failed" R2(config)#username wnoguchi password PG1X *Oct 22 22:53:16.143: Se0/0/0 PPP: Using default call direction *Oct 22 22:53:16.143: Se0/0/0 PPP: Treating connection as a dedicated line *Oct 22 22:53:16.147: Se0/0/0 PPP: Session handle[79000049] Session id[73] *Oct 22 22:53:16.171: Se0/0/0 PAP: Using hostname from interface PAP *Oct 22 22:53:16.171: Se0/0/0 PAP: Using password from interface PAP *Oct 22 22:53:16.171: Se0/0/0 PAP: O AUTH-REQ id 1 len 18 from "wnoguchi" *Oct 22 22:53:16.175: Se0/0/0 PAP: I AUTH-REQ id 1 len 18 from "wnoguchi" *Oct 22 22:53:16.175: Se0/0/0 PAP: Authenticating peer wnoguchi *Oct 22 22:53:16.175: Se0/0/0 PPP: Sent PAP LOGIN Request R2(config)#username wnoguchi password PG1X *Oct 22 22:53:16.179: Se0/0/0 PPP: Received LOGIN Response FAIL *Oct 22 22:53:16.179: Se0/0/0 PAP: O AUTH-NAK id 1 len 26 msg is "Authentication failed" R2(config)#username wnoguchi password PG1X R2(config)# *Oct 22 22:53:18.191: Se0/0/0 PPP: Using default call direction *Oct 22 22:53:18.191: Se0/0/0 PPP: Treating connection as a dedicated line *Oct 22 22:53:18.191: Se0/0/0 PPP: Session handle[6600004A] Session id[74] *Oct 22 22:53:18.219: Se0/0/0 PAP: Using hostname from interface PAP *Oct 22 22:53:18.219: Se0/0/0 PAP: Using password from interface PAP *Oct 22 22:53:18.219: Se0/0/0 PAP: O AUTH-REQ id 1 len 18 from "wnoguchi" *Oct 22 22:53:18.223: Se0/0/0 PAP: I AUTH-REQ id 1 len 18 from "wnoguchi" *Oct 22 22:53:18.223: Se0/0/0 PAP: Authenticating peer wnoguchi *Oct 22 22:53:18.223: Se0/0/0 PPP: Sent PAP LOGIN Request *Oct 22 22:53:18.227: Se0/0/0 PPP: Received LOGIN Response PASS *Oct 22 22:53:18.231: Se0/0/0 PAP: O AUTH-ACK id 1 len 5 *Oct 22 22:53:18.235: Se0/0/0 PAP: I AUTH-ACK id 1 len 5 R2(config)# *Oct 22 22:53:18.239: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to up R2(config)#do ping 172.16.2.1 repeat 1000000 Type escape sequence to abort. Sending 1000000, 100-byte ICMP Echos to 172.16.2.1, timeout is 2 seconds: !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!. Success rate is 99 percent (175/176), round-trip min/avg/max = 28/29/32 ms R2(config)#
DCE
en conf t ! username R2 password PG1X ! int s0/0/0 ip address 172.16.2.1 255.255.255.252 encapsulation ppp ppp authentication pap ppp pap sent-username R1 password PG1X clock rate 64000 no shut exit ! end
DTE
en conf t ! username R1 password PG1X ! int s0/0/0 ip address 172.16.2.2 255.255.255.252 encapsulation ppp ppp authentication pap ppp pap sent-username R2 password PG1X no shut exit ! end
R1(config)#do u all All possible debugging has been turned off R1(config)#username R2 password PG1X R1(config)#int s0/0/0 R1(config-if)#ip address 172.16.2.1 255.255.255.252 R1(config-if)#encapsulation ppp R1(config-if)#ppp authentication pap R1(config-if)#ppp pap sent-username R1 password PG1X R1(config-if)#clock rate 64000 R1(config-if)#no shut R1(config-if)#exit R1(config)#! R1(config)#end R1# *Oct 22 22:55:43.983: %SYS-5-CONFIG_I: Configured from console by console R1# *Oct 22 22:55:45.919: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to down R1# *Oct 22 22:55:47.955: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to up R1#clear ppp all R1#do pp *Oct 22 22:56:06.255: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to down R1# *Oct 22 22:56:08.307: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to up R1#debug ppp authen R1#debug ppp authentication PPP authentication debugging is on R1#clear ppp all R1# *Oct 22 22:56:26.075: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to down R1# *Oct 22 22:56:28.079: Se0/0/0 PPP: Using default call direction *Oct 22 22:56:28.079: Se0/0/0 PPP: Treating connection as a dedicated line *Oct 22 22:56:28.079: Se0/0/0 PPP: Session handle[9A00004D] Session id[77] *Oct 22 22:56:28.099: Se0/0/0 PAP: Using hostname from interface PAP *Oct 22 22:56:28.099: Se0/0/0 PAP: Using password from interface PAP *Oct 22 22:56:28.099: Se0/0/0 PAP: O AUTH-REQ id 1 len 12 from "R1" *Oct 22 22:56:28.099: Se0/0/0 PAP: I AUTH-REQ id 1 len 12 from "R2" *Oct 22 22:56:28.099: Se0/0/0 PAP: Authenticating peer R2 *Oct 22 22:56:28.099: Se0/0/0 PPP: Sent PAP LOGIN Request *Oct 22 22:56:28.103: Se0/0/0 PPP: Received LOGIN Response PASS *Oct 22 22:56:28.107: Se0/0/0 PAP: O AUTH-ACK id 1 len 5 *Oct 22 22:56:28.115: Se0/0/0 PAP: I AUTH-ACK id 1 len 5 R1# *Oct 22 22:56:28.119: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to up R1#ping 172.16.2.2 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 172.16.2.2, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 28/28/32 ms R1#u all All possible debugging has been turned off R1#
R2(config)#do u all All possible debugging has been turned off R2(config)#username R1 password PG1X R2(config)# *Oct 22 22:59:17.391: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to down R2(config)# *Oct 22 22:59:19.423: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to up R2(config)#int s0/0/0 R2(config-if)#ip address 172.16.2.2 255.255.255.252 R2(config-if)#encapsulation ppp R2(config-if)#ppp authentication pap R2(config-if)#ppp pap sent-username R2 password PG1X R2(config-if)#no shut R2(config-if)#exit R2(config)#! R2(config)#end R2# *Oct 22 22:59:23.667: %SYS-5-CONFIG_I: Configured from console by console R2#clear ppp all R2#do pp *Oct 22 22:59:37.723: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to down R2# *Oct 22 22:59:39.775: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to up R2#debug ppp authen R2#debug ppp authentication PPP authentication debugging is on R2#clear ppp all R2# *Oct 22 22:59:57.547: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to down R2# *Oct 22 22:59:59.547: Se0/0/0 PPP: Using default call direction *Oct 22 22:59:59.547: Se0/0/0 PPP: Treating connection as a dedicated line *Oct 22 22:59:59.547: Se0/0/0 PPP: Session handle[8500004D] Session id[77] *Oct 22 22:59:59.563: Se0/0/0 PAP: Using hostname from interface PAP *Oct 22 22:59:59.563: Se0/0/0 PAP: Using password from interface PAP *Oct 22 22:59:59.563: Se0/0/0 PAP: O AUTH-REQ id 1 len 12 from "R2" *Oct 22 22:59:59.567: Se0/0/0 PAP: I AUTH-REQ id 1 len 12 from "R1" *Oct 22 22:59:59.567: Se0/0/0 PAP: Authenticating peer R1 *Oct 22 22:59:59.571: Se0/0/0 PPP: Sent PAP LOGIN Request *Oct 22 22:59:59.571: Se0/0/0 PPP: Received LOGIN Response PASS *Oct 22 22:59:59.579: Se0/0/0 PAP: I AUTH-ACK id 1 len 5 *Oct 22 22:59:59.579: Se0/0/0 PAP: O AUTH-ACK id 1 len 5 R2# *Oct 22 22:59:59.583: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to up R2#ping 172.16.2.1 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 172.16.2.1, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 28/28/32 ms R2#u all All possible debugging has been turned off R2#
reload router
R1>en R1#conf t Enter configuration commands, one per line. End with CNTL/Z. R1(config)#userna R1(config)#username R2 password PG1X R1(config)#int s0/0/0 R1(config-if)#ip address 172.16.2.1 255.255.255.252 R1(config-if)#encap R1(config-if)#encapsulation ppp R1(config-if)#ppp auth R1(config-if)#ppp authe R1(config-if)#ppp authentication pap R1(config-if)#ppp pap sent-use R1(config-if)#ppp pap sent-username R1 password PG1X R1(config-if)#ppp pap sent-username R2 password PG1X PPP: Warning: You have chosen a username/password combination that is valid for CHAP. This is a potential security hole. R1(config-if)#ppp pap sent-username R1 password PG1X R1(config-if)#ppp pap sent-username R2 password PG1X PPP: Warning: You have chosen a username/password combination that is valid for CHAP. This is a potential security hole. R1(config-if)#ppp pap sent-username R2 password PG1X PPP: Warning: You have chosen a username/password combination that is valid for CHAP. This is a potential security hole. R1(config-if)#ppp pap sent-username R2 password PG1X PPP: Warning: You have chosen a username/password combination that is valid for CHAP. This is a potential security hole. R1(config-if)#ppp pap sent-username R1 password PG1X R1(config-if)#clock rate 64000 R1(config-if)#no shut R1(config-if)# *Oct 22 23:04:02.179: %LINK-3-UPDOWN: Interface Serial0/0/0, changed state to up R1(config-if)# *Oct 22 23:04:02.311: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to up R1(config-if)#^Z R1# *Oct 22 23:04:05.067: %SYS-5-CONFIG_I: Configured from console by console R1#debug ppp authentication PPP authentication debugging is on R1#clear ppp all R1# *Oct 22 23:04:33.987: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to down R1# *Oct 22 23:04:35.983: Se0/0/0 PPP: Using default call direction *Oct 22 23:04:35.983: Se0/0/0 PPP: Treating connection as a dedicated line *Oct 22 23:04:35.983: Se0/0/0 PPP: Session handle[E8000002] Session id[2] *Oct 22 23:04:35.995: Se0/0/0 PAP: Using hostname from interface PAP *Oct 22 23:04:35.995: Se0/0/0 PAP: Using password from interface PAP *Oct 22 23:04:35.995: Se0/0/0 PAP: O AUTH-REQ id 1 len 12 from "R1" *Oct 22 23:04:36.011: Se0/0/0 PAP: I AUTH-REQ id 1 len 12 from "R2" *Oct 22 23:04:36.011: Se0/0/0 PAP: Authenticating peer R2 *Oct 22 23:04:36.015: Se0/0/0 PPP: Sent PAP LOGIN Request *Oct 22 23:04:36.015: Se0/0/0 PPP: Received LOGIN Response PASS *Oct 22 23:04:36.023: Se0/0/0 PAP: I AUTH-ACK id 1 len 5 *Oct 22 23:04:36.023: Se0/0/0 PAP: O AUTH-ACK id 1 len 5 R1# *Oct 22 23:04:36.027: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to up R1#ping 172.16.2.2 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 172.16.2.2, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 28/28/32 ms R1#
R2>en R2#conf t Enter configuration commands, one per line. End with CNTL/Z. R2(config)#userna R2(config)#username R1 password PG1X R2(config)#int s0/0/0 R2(config-if)#ip address 172.16.2.2 255.255.255.252 R2(config-if)#encap R2(config-if)#encapsulation ppp R2(config-if)#ppp auth R2(config-if)#ppp authe R2(config-if)#ppp authentication pap R2(config-if)#ppp pap sent-use R2(config-if)#ppp pap sent-username R2 password PG1X R2(config-if)#ppp pap sent-username R1 password PG1X PPP: Warning: You have chosen a username/password combination that is valid for CHAP. This is a potential security hole. R2(config-if)#ppp pap sent-username R2 password PG1X R2(config-if)#ppp pap sent-username R1 password PG1X PPP: Warning: You have chosen a username/password combination that is valid for CHAP. This is a potential security hole. R2(config-if)#ppp pap sent-username R1 password PG1X PPP: Warning: You have chosen a username/password combination that is valid for CHAP. This is a potential security hole. R2(config-if)#ppp pap sent-username R1 password PG1X PPP: Warning: You have chosen a username/password combination that is valid for CHAP. This is a potential security hole. R2(config-if)#ppp pap sent-username R2 password PG1X R2(config-if)#no shut R2(config-if)# *Oct 22 23:07:33.279: %LINK-3-UPDOWN: Interface Serial0/0/0, changed state to up R2(config-if)# *Oct 22 23:07:33.391: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to up R2(config-if)#^Z R2# *Oct 22 23:07:36.151: %SYS-5-CONFIG_I: Configured from console by console R2#debug ppp authentication PPP authentication debugging is on R2#clear ppp all R2# *Oct 22 23:08:05.071: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to down R2# *Oct 22 23:08:07.071: Se0/0/0 PPP: Using default call direction *Oct 22 23:08:07.071: Se0/0/0 PPP: Treating connection as a dedicated line *Oct 22 23:08:07.071: Se0/0/0 PPP: Session handle[A9000002] Session id[2] *Oct 22 23:08:07.095: Se0/0/0 PAP: Using hostname from interface PAP *Oct 22 23:08:07.095: Se0/0/0 PAP: Using password from interface PAP *Oct 22 23:08:07.095: Se0/0/0 PAP: O AUTH-REQ id 1 len 12 from "R2" *Oct 22 23:08:07.095: Se0/0/0 PAP: I AUTH-REQ id 1 len 12 from "R1" *Oct 22 23:08:07.095: Se0/0/0 PAP: Authenticating peer R1 *Oct 22 23:08:07.095: Se0/0/0 PPP: Sent PAP LOGIN Request *Oct 22 23:08:07.099: Se0/0/0 PPP: Received LOGIN Response PASS *Oct 22 23:08:07.103: Se0/0/0 PAP: O AUTH-ACK id 1 len 5 *Oct 22 23:08:07.111: Se0/0/0 PAP: I AUTH-ACK id 1 len 5 R2# *Oct 22 23:08:07.115: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to up R2#ping 172.16.2.1 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 172.16.2.1, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 28/29/32 ms
for CCIE.
peer neighbor route installed.
DCE
en conf t ! username R2 password PG1X ! int s0/0/0 clock rate 64000 ip address 172.16.2.1 255.255.255.252 encapsulation ppp ppp authentication chap no shut exit ! end
DTE
en conf t ! username R1 password PG1X ! int s0/0/0 ip address 172.16.2.2 255.255.255.252 encapsulation ppp ppp authentication chap no shut exit ! end
R1#sh ip ro Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2 E1 - OSPF external type 1, E2 - OSPF external type 2 i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2 ia - IS-IS inter area, * - candidate default, U - per-user static route o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP + - replicated route, % - next hop override Gateway of last resort is not set 172.16.0.0/16 is variably subnetted, 3 subnets, 2 masks C 172.16.2.0/30 is directly connected, Serial0/0/0 L 172.16.2.1/32 is directly connected, Serial0/0/0 C 172.16.2.2/32 is directly connected, Serial0/0/0 R1(config-if)#do ping 172.16.2.2 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 172.16.2.2, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 28/28/32 ms
R2#sh ip ro Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2 E1 - OSPF external type 1, E2 - OSPF external type 2 i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2 ia - IS-IS inter area, * - candidate default, U - per-user static route o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP + - replicated route, % - next hop override Gateway of last resort is not set 172.16.0.0/16 is variably subnetted, 3 subnets, 2 masks C 172.16.2.0/30 is directly connected, Serial0/0/0 C 172.16.2.1/32 is directly connected, Serial0/0/0 L 172.16.2.2/32 is directly connected, Serial0/0/0 R2(config-if)#do ping 172.16.2.1 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 172.16.2.1, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 28/29/32 ms
let's say clear ip route
R1#clear ip ro * R1#sh ip ro Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2 E1 - OSPF external type 1, E2 - OSPF external type 2 i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2 ia - IS-IS inter area, * - candidate default, U - per-user static route o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP + - replicated route, % - next hop override Gateway of last resort is not set 172.16.0.0/16 is variably subnetted, 3 subnets, 2 masks C 172.16.2.0/30 is directly connected, Serial0/0/0 L 172.16.2.1/32 is directly connected, Serial0/0/0 C 172.16.2.2/32 is directly connected, Serial0/0/0 R1#clear ppp all R1# *Oct 24 22:19:20.055: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to down R1#sh ip ro *Oct 24 22:19:22.099: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to up R1#sh ip ro Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2 E1 - OSPF external type 1, E2 - OSPF external type 2 i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2 ia - IS-IS inter area, * - candidate default, U - per-user static route o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP + - replicated route, % - next hop override Gateway of last resort is not set 172.16.0.0/16 is variably subnetted, 3 subnets, 2 masks C 172.16.2.0/30 is directly connected, Serial0/0/0 L 172.16.2.1/32 is directly connected, Serial0/0/0 C 172.16.2.2/32 is directly connected, Serial0/0/0 R1#clear ppp all R1#sh ip ro Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2 E1 - OSPF external type 1, E2 - OSPF external type 2 i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2 ia - IS-IS inter area, * - candidate default, U - per-user static route o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP + - replicated route, % - next hop override Gateway of last resort is not set R1# *Oct 24 22:19:28.439: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to down R1#sh ip ro *Oct 24 22:19:30.483: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to up R1#sh ip ro Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2 E1 - OSPF external type 1, E2 - OSPF external type 2 i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2 ia - IS-IS inter area, * - candidate default, U - per-user static route o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP + - replicated route, % - next hop override Gateway of last resort is not set 172.16.0.0/16 is variably subnetted, 3 subnets, 2 masks C 172.16.2.0/30 is directly connected, Serial0/0/0 L 172.16.2.1/32 is directly connected, Serial0/0/0 C 172.16.2.2/32 is directly connected, Serial0/0/0
Enter no peer neighbor-route
DCE
en conf t ! username R2 password PG1X ! int s0/0/0 clock rate 64000 ip address 172.16.2.1 255.255.255.252 encapsulation ppp ppp authentication chap no peer neighbor-route no shut exit ! end
DTE
en conf t ! username R1 password PG1X ! int s0/0/0 ip address 172.16.2.2 255.255.255.252 encapsulation ppp ppp authentication chap no peer neighbor-route no shut exit ! end
R1#conf t Enter configuration commands, one per line. End with CNTL/Z. R1(config)#int s0;0/0 ^ % Invalid input detected at '^' marker. R1(config)#int s0/0/0 R1(config-if)#peer R1(config-if)#peer neigh R1(config-if)#do ping 172.16.2.2 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 172.16.2.2, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 28/28/32 ms R1(config-if)#no pear R1(config-if)#no pee R1(config-if)#no peer neigh R1(config-if)#no peer neighbor-route R1(config-if)#do sh ip ro Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2 E1 - OSPF external type 1, E2 - OSPF external type 2 i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2 ia - IS-IS inter area, * - candidate default, U - per-user static route o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP + - replicated route, % - next hop override Gateway of last resort is not set 172.16.0.0/16 is variably subnetted, 3 subnets, 2 masks C 172.16.2.0/30 is directly connected, Serial0/0/0 L 172.16.2.1/32 is directly connected, Serial0/0/0 C 172.16.2.2/32 is directly connected, Serial0/0/0 R1(config-if)#clear ip ro * ^ % Invalid input detected at '^' marker. R1(config-if)#do clear ip ro * R1(config-if)#do sh ip ro Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2 E1 - OSPF external type 1, E2 - OSPF external type 2 i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2 ia - IS-IS inter area, * - candidate default, U - per-user static route o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP + - replicated route, % - next hop override Gateway of last resort is not set 172.16.0.0/16 is variably subnetted, 2 subnets, 2 masks C 172.16.2.0/30 is directly connected, Serial0/0/0 L 172.16.2.1/32 is directly connected, Serial0/0/0 R1(config-if)#do ping 172.16.2.2 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 172.16.2.2, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 28/28/28 ms R1(config-if)#do sh run int s0/0/0 Building configuration... Current configuration : 169 bytes ! interface Serial0/0/0 ip address 172.16.2.1 255.255.255.252 encapsulation ppp no peer neighbor-route no fair-queue ppp authentication chap clock rate 64000 end R1(config-if)#^Z R1#clear *Oct 24 22:32:16.711: %SYS-5-CONFIG_I: Configured from console by console R1#clear ppp all R1# *Oct 24 22:32:21.603: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to down R1#conf t *Oct 24 22:32:23.667: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to up R1#sh ip ro Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2 E1 - OSPF external type 1, E2 - OSPF external type 2 i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2 ia - IS-IS inter area, * - candidate default, U - per-user static route o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP + - replicated route, % - next hop override Gateway of last resort is not set 172.16.0.0/16 is variably subnetted, 2 subnets, 2 masks C 172.16.2.0/30 is directly connected, Serial0/0/0 L 172.16.2.1/32 is directly connected, Serial0/0/0 R1#ping 172.16.2.2 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 172.16.2.2, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 28/29/32 ms R1#ping 172.16.2.2 repea R1#ping 172.16.2.2 repeat 10000 Type escape sequence to abort. Sending 10000, 100-byte ICMP Echos to 172.16.2.2, timeout is 2 seconds: !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!!!!!!!!!!!!!!!!!!!!!!!. Success rate is 98 percent (97/98), round-trip min/avg/max = 28/29/56 ms
R2#conf t Enter configuration commands, one per line. End with CNTL/Z. R2(config)#int s0;0/0 ^ % Invalid input detected at '^' marker. R2(config)#int s0/0/0 R2(config-if)#peer R2(config-if)#peer neigh R2(config-if)#do ping 172.16.2.1 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 172.16.2.1, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 28/29/32 ms R2(config-if)#no pear R2(config-if)#no pee R2(config-if)#no peer neigh R2(config-if)#no peer neighbor-route R2(config-if)#do sh ip ro Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2 E1 - OSPF external type 1, E2 - OSPF external type 2 i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2 ia - IS-IS inter area, * - candidate default, U - per-user static route o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP + - replicated route, % - next hop override Gateway of last resort is not set 172.16.0.0/16 is variably subnetted, 3 subnets, 2 masks C 172.16.2.0/30 is directly connected, Serial0/0/0 C 172.16.2.1/32 is directly connected, Serial0/0/0 L 172.16.2.2/32 is directly connected, Serial0/0/0 R2(config-if)#clear ip ro * ^ % Invalid input detected at '^' marker. R2(config-if)#do clear ip ro * R2(config-if)#do sh ip ro Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2 E1 - OSPF external type 1, E2 - OSPF external type 2 i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2 ia - IS-IS inter area, * - candidate default, U - per-user static route o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP + - replicated route, % - next hop override Gateway of last resort is not set 172.16.0.0/16 is variably subnetted, 2 subnets, 2 masks C 172.16.2.0/30 is directly connected, Serial0/0/0 L 172.16.2.2/32 is directly connected, Serial0/0/0 R2(config-if)#do ping 172.16.2.1 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 172.16.2.1, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 28/28/28 ms R2(config-if)#do sh run int s0/0/0 Building configuration... Current configuration : 151 bytes ! interface Serial0/0/0 ip address 172.16.2.2 255.255.255.252 encapsulation ppp no peer neighbor-route no fair-queue ppp authentication chap end R2(config-if)#^Z R2#clear *Oct 24 22:35:50.163: %SYS-5-CONFIG_I: Configured from console by console R2#clear ppp all R2# *Oct 24 22:35:55.055: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to down R2#sh ip ro *Oct 24 22:35:57.119: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to up R2#sh ip ro Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2 E1 - OSPF external type 1, E2 - OSPF external type 2 i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2 ia - IS-IS inter area, * - candidate default, U - per-user static route o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP + - replicated route, % - next hop override Gateway of last resort is not set 172.16.0.0/16 is variably subnetted, 2 subnets, 2 masks C 172.16.2.0/30 is directly connected, Serial0/0/0 L 172.16.2.2/32 is directly connected, Serial0/0/0 R2#ping 172.16.2.1 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 172.16.2.1, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 28/28/28 ms R2#ping 172.16.2.1 repea R2#ping 172.16.2.1 repeat 10000 Type escape sequence to abort. Sending 10000, 100-byte ICMP Echos to 172.16.2.1, timeout is 2 seconds: !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!. Success rate is 98 percent (98/99), round-trip min/avg/max = 28/29/44 ms
IPCP negotiation.
DCE
en conf t ! username R2 password PG1X ! int s0/0/0 clock rate 64000 ip address 172.16.2.1 255.255.255.252 encapsulation ppp ppp authentication chap peer default ip address 172.16.2.2 no shut exit ! end
DTE
en conf t ! username R1 password PG1X ! int s0/0/0 ip address negotiated encapsulation ppp ppp authentication chap no shut exit ! end
R1#conf t Enter configuration commands, one per line. End with CNTL/Z. R1(config)#int s0/0/0 R1(config-if)#ip address nego R1(config-if)#ip address negotiated R1(config-if)#ip address 172.16.2.1 255.255.255.252 R1(config-if)#peer defau R1(config-if)#peer R1(config-if)#peer defau R1(config-if)#peer default ip adddre R1(config-if)#peer default ip addre R1(config-if)#peer default ip address 172.16.2.2 R1(config-if)#^Z R1#sh ip *Oct 24 22:40:40.239: %SYS-5-CONFIG_I: Configured from console by console R1#sh ip int brief Interface IP-Address OK? Method Status Protocol FastEthernet0/0 unassigned YES NVRAM administratively down down FastEthernet0/1 unassigned YES NVRAM administratively down down Serial0/0/0 172.16.2.1 YES manual up up R1#clear ip ro * R1#sh ip int brief Interface IP-Address OK? Method Status Protocol FastEthernet0/0 unassigned YES NVRAM administratively down down FastEthernet0/1 unassigned YES NVRAM administratively down down Serial0/0/0 172.16.2.1 YES manual up up R1#sh ip int brief Interface IP-Address OK? Method Status Protocol FastEthernet0/0 unassigned YES NVRAM administratively down down FastEthernet0/1 unassigned YES NVRAM administratively down down Serial0/0/0 172.16.2.1 YES manual up up R1#cler ppp all ^ % Invalid input detected at '^' marker. R1#clear ppp all R1# *Oct 24 22:41:08.883: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to down R1#cler ppp all *Oct 24 22:41:10.931: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to up R1#sh ip int brief Interface IP-Address OK? Method Status Protocol FastEthernet0/0 unassigned YES NVRAM administratively down down FastEthernet0/1 unassigned YES NVRAM administratively down down Serial0/0/0 172.16.2.1 YES manual up up R1#sh ip ro Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2 E1 - OSPF external type 1, E2 - OSPF external type 2 i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2 ia - IS-IS inter area, * - candidate default, U - per-user static route o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP + - replicated route, % - next hop override Gateway of last resort is not set 172.16.0.0/16 is variably subnetted, 2 subnets, 2 masks C 172.16.2.0/30 is directly connected, Serial0/0/0 L 172.16.2.1/32 is directly connected, Serial0/0/0 R1#ping 172.16.2.2 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 172.16.2.2, timeout is 2 seconds: ..... Success rate is 0 percent (0/5) R1#conf t Enter configuration commands, one per line. End with CNTL/Z. R1(config)#int s0/0/0 R1(config-if)#peer neighbor-route R1(config-if)#^Z R1#conf t *Oct 24 22:42:34.487: %SYS-5-CONFIG_I: Configured from console by console R1#ping 172.16.2.2 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 172.16.2.2, timeout is 2 seconds: ... Success rate is 0 percent (0/3) R1#clear ip ro * R1#ping 172.16.2.2 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 172.16.2.2, timeout is 2 seconds: .. Success rate is 0 percent (0/2) R1#clear ppp all R1# *Oct 24 22:42:55.307: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to down R1#pin *Oct 24 22:42:57.363: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to up R1#ping 172.16.2.2 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 172.16.2.2, timeout is 2 seconds: ..... Success rate is 0 percent (0/5) R1#conf t Enter configuration commands, one per line. End with CNTL/Z. R1(config)#int s0/0/0 R1(config-if)#int s0/0/0 R1(config-if)#peer neighbor-route R1(config-if)#^Z R1#clear *Oct 24 22:44:11.663: %SYS-5-CONFIG_I: Configured from console by console R1#clear ip ro * R1#ping 172.16.2.2 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 172.16.2.2, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 28/28/32 ms R1#sh ip int b Interface IP-Address OK? Method Status Protocol FastEthernet0/0 unassigned YES NVRAM administratively down down FastEthernet0/1 unassigned YES NVRAM administratively down down Serial0/0/0 172.16.2.1 YES manual up up R1#sh ip ro Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2 E1 - OSPF external type 1, E2 - OSPF external type 2 i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2 ia - IS-IS inter area, * - candidate default, U - per-user static route o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP + - replicated route, % - next hop override Gateway of last resort is not set 172.16.0.0/16 is variably subnetted, 3 subnets, 2 masks C 172.16.2.0/30 is directly connected, Serial0/0/0 L 172.16.2.1/32 is directly connected, Serial0/0/0 C 172.16.2.2/32 is directly connected, Serial0/0/0 R1#ping 172.16.2.2 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 172.16.2.2, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 28/28/28 ms R1#clear ppp all R1# *Oct 24 22:45:26.491: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to down R1# *Oct 24 22:45:28.543: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to up R1#ping 172.16.2.2 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 172.16.2.2, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 28/28/32 ms
R2#conf t Enter configuration commands, one per line. End with CNTL/Z. R2(config)#int s0/0/0 R2(config-if)#no ip address R2(config-if)#ip address nego R2(config-if)#ip address negotiated R2(config-if)#do sh ip int brief Interface IP-Address OK? Method Status Protocol FastEthernet0/0 unassigned YES NVRAM administratively down down FastEthernet0/1 unassigned YES NVRAM administratively down down Serial0/0/0 unassigned YES manual up up R2(config-if)# defau R2(config-if)#^Z R2#sh *Oct 24 22:44:13.695: %SYS-5-CONFIG_I: Configured from console by console R2#sh ip int brief Interface IP-Address OK? Method Status Protocol FastEthernet0/0 unassigned YES NVRAM administratively down down FastEthernet0/1 unassigned YES NVRAM administratively down down Serial0/0/0 unassigned YES manual up up R2#clear ip ro * R2#sh ip int brief Interface IP-Address OK? Method Status Protocol FastEthernet0/0 unassigned YES NVRAM administratively down down FastEthernet0/1 unassigned YES NVRAM administratively down down Serial0/0/0 unassigned YES manual up up R2#sh ip int brief Interface IP-Address OK? Method Status Protocol FastEthernet0/0 unassigned YES NVRAM administratively down down FastEthernet0/1 unassigned YES NVRAM administratively down down Serial0/0/0 unassigned YES manual up up R2#cler ppp all ^ % Invalid input detected at '^' marker. R2#clear ppp all R2# *Oct 24 22:44:42.331: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to down R2#sh ip int brief *Oct 24 22:44:44.387: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to up R2#sh ip int brief Interface IP-Address OK? Method Status Protocol FastEthernet0/0 unassigned YES NVRAM administratively down down FastEthernet0/1 unassigned YES NVRAM administratively down down Serial0/0/0 172.16.2.2 YES IPCP up up R2#sh ip ro Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2 E1 - OSPF external type 1, E2 - OSPF external type 2 i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2 ia - IS-IS inter area, * - candidate default, U - per-user static route o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP + - replicated route, % - next hop override Gateway of last resort is not set 172.16.0.0/32 is subnetted, 1 subnets C 172.16.2.2 is directly connected, Serial0/0/0 R2#ping 72.16.2.1 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 72.16.2.1, timeout is 2 seconds: ..... Success rate is 0 percent (0/5) R2#conf t Enter configuration commands, one per line. End with CNTL/Z. R2(config)#int s0/0/0 R2(config-if)# R2(config-if)#^Z R2# *Oct 24 22:46:07.943: %SYS-5-CONFIG_I: Configured from console by console R2#ping 72.16.2.1 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 72.16.2.1, timeout is 2 seconds: ... Success rate is 0 percent (0/3) R2#clear ip ro * R2#ping 72.16.2.1 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 72.16.2.1, timeout is 2 seconds: .. Success rate is 0 percent (0/2) R2#clear ppp all R2# *Oct 24 22:46:28.759: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to down R2# *Oct 24 22:46:30.819: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to up R2#ping 72.16.2.1 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 72.16.2.1, timeout is 2 seconds: ..... Success rate is 0 percent (0/5) R2#conf t Enter configuration commands, one per line. End with CNTL/Z. R2(config)#do sh ip int brief Interface IP-Address OK? Method Status Protocol FastEthernet0/0 unassigned YES NVRAM administratively down down FastEthernet0/1 unassigned YES NVRAM administratively down down Serial0/0/0 172.16.2.2 YES IPCP up up R2(config)#int s0/0/0 R2(config-if)#peer neighbor-route R2(config-if)#^Z R2#clear *Oct 24 22:47:45.119: %SYS-5-CONFIG_I: Configured from console by console R2#clear ip ro * R2#ping 72.16.2.1 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 72.16.2.1, timeout is 2 seconds: .... Success rate is 0 percent (0/4) R2#sh ip int b Interface IP-Address OK? Method Status Protocol FastEthernet0/0 unassigned YES NVRAM administratively down down FastEthernet0/1 unassigned YES NVRAM administratively down down Serial0/0/0 172.16.2.2 YES IPCP up up R2#sh ip ro Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2 E1 - OSPF external type 1, E2 - OSPF external type 2 i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2 ia - IS-IS inter area, * - candidate default, U - per-user static route o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP + - replicated route, % - next hop override Gateway of last resort is not set 172.16.0.0/32 is subnetted, 2 subnets C 172.16.2.1 is directly connected, Serial0/0/0 C 172.16.2.2 is directly connected, Serial0/0/0 R2#ping 72.16.2.1 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 72.16.2.1, timeout is 2 seconds: .. Success rate is 0 percent (0/2) R2#clear ppp all R2# *Oct 24 22:48:59.947: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to down R2# *Oct 24 22:49:01.999: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to up R2#ping 72.16.2.1 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 72.16.2.1, timeout is 2 seconds: ..... Success rate is 0 percent (0/5)
one direction ping successful…
reload!!!
R1>en R1#conf t Enter configuration commands, one per line. End with CNTL/Z. R1(config)#! R1(config)#username R2 password PG1X R1(config)#! R1(config)#int s0/0/0 R1(config-if)#clock rate 64000 R1(config-if)#ip address 172.16.2.1 255.255.255.252 R1(config-if)#encapsulation ppp R1(config-if)#ppp authentication chap R1(config-if)#peer default ip address 172.16.2.2 R1(config-if)#no shut R1(config-if)#exit R1(config)#! R1(config)#end R1# *Oct 24 23:02:58.939: %SYS-5-CONFIG_I: Configured from console by console R1# *Oct 24 23:03:00.867: %LINK-3-UPDOWN: Interface Serial0/0/0, changed state to down R1# *Oct 24 23:03:05.895: %LINK-3-UPDOWN: Interface Serial0/0/0, changed state to up R1# *Oct 24 23:03:06.019: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to up R1#ping 172.16.2.2 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 172.16.2.2, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 28/29/32 ms R1#ping 172.16.2.2 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 172.16.2.2, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 28/29/32 ms R1#sh ip ro Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2 E1 - OSPF external type 1, E2 - OSPF external type 2 i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2 ia - IS-IS inter area, * - candidate default, U - per-user static route o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP + - replicated route, % - next hop override Gateway of last resort is not set 172.16.0.0/16 is variably subnetted, 3 subnets, 2 masks C 172.16.2.0/30 is directly connected, Serial0/0/0 L 172.16.2.1/32 is directly connected, Serial0/0/0 C 172.16.2.2/32 is directly connected, Serial0/0/0 R1#sh ip int bri s0/0/0 Interface IP-Address OK? Method Status Protocol Serial0/0/0 172.16.2.1 YES manual up up
R2>en R2#conf t Enter configuration commands, one per line. End with CNTL/Z. R2(config)#! R2(config)#username R1 password PG1X R2(config)#! R2(config)#int s0/0/0 R2(config-if)#ip address nogotiated ^ % Invalid input detected at '^' marker. R2(config-if)#encapsulation ppp R2(config-if)#ppp authentication chap R2(config-if)#no shut R2(config-if)#exit R2(config)#! R2(config)#end R2# *Oct 24 23:06:38.315: %SYS-5-CONFIG_I: Configured from console by console R2# *Oct 24 23:06:40.251: %LINK-3-UPDOWN: Interface Serial0/0/0, changed state to up R2# *Oct 24 23:06:40.379: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to up R2#en R2#conf t Enter configuration commands, one per line. End with CNTL/Z. R2(config)#! R2(config)#username R1 password PG1X R2(config)#! R2(config)#int s0/0/0 R2(config-if)#ip address negotiated R2(config-if)#encapsulation ppp R2(config-if)#ppp authentication chap R2(config-if)#no shut R2(config-if)#exit R2(config)#! R2(config)#end R2# *Oct 24 23:06:54.367: %SYS-5-CONFIG_I: Configured from console by console R2#ping 172.16.2.1 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 172.16.2.1, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 28/28/32 ms R2#ping 172.16.2.1 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 172.16.2.1, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 28/28/32 ms R2#sh ip ro Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2 E1 - OSPF external type 1, E2 - OSPF external type 2 i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2 ia - IS-IS inter area, * - candidate default, U - per-user static route o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP + - replicated route, % - next hop override Gateway of last resort is not set 172.16.0.0/32 is subnetted, 2 subnets C 172.16.2.1 is directly connected, Serial0/0/0 C 172.16.2.2 is directly connected, Serial0/0/0 R2#sh ip int bri s0/0/0 Interface IP-Address OK? Method Status Protocol Serial0/0/0 172.16.2.2 YES IPCP up up
IPCP negotiation.
DCE
en conf t ! username R2 password PG1X ! access-list 1 permit 172.16.2.0 0.0.0.3 ! ip nat inside source list 1 interface f0/1 overload ! int f0/1 ip address dhcp ip nat outside no shut exit ! int s0/0/0 clock rate 64000 ip address 172.16.2.1 255.255.255.252 encapsulation ppp ppp authentication chap peer default ip address 172.16.2.2 ip nat inside no shut exit ! ip domain-lookup ip name-server 8.8.8.8 8.8.4.4 1.1.1.1 ! end
DTE
en conf t ! username R1 password PG1X ! int s0/0/0 ip address negotiated encapsulation ppp ppp authentication chap ppp ipcp route default no shut exit ! ip domain-lookup ip name-server 8.8.8.8 8.8.4.4 1.1.1.1 ! end
R1#conf t Enter configuration commands, one per line. End with CNTL/Z. R1(config)#int f0/1 R1(config-if)#ip addre R1(config-if)#ip address dhcp R1(config-if)#^Z R1#sh *Oct 24 23:08:58.835: %SYS-5-CONFIG_I: Configured from console by console R1#sh ip ro Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2 E1 - OSPF external type 1, E2 - OSPF external type 2 i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2 ia - IS-IS inter area, * - candidate default, U - per-user static route o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP + - replicated route, % - next hop override Gateway of last resort is not set 172.16.0.0/16 is variably subnetted, 3 subnets, 2 masks C 172.16.2.0/30 is directly connected, Serial0/0/0 L 172.16.2.1/32 is directly connected, Serial0/0/0 C 172.16.2.2/32 is directly connected, Serial0/0/0 R1#sh ip ro Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2 E1 - OSPF external type 1, E2 - OSPF external type 2 i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2 ia - IS-IS inter area, * - candidate default, U - per-user static route o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP + - replicated route, % - next hop override Gateway of last resort is not set 172.16.0.0/16 is variably subnetted, 3 subnets, 2 masks C 172.16.2.0/30 is directly connected, Serial0/0/0 L 172.16.2.1/32 is directly connected, Serial0/0/0 C 172.16.2.2/32 is directly connected, Serial0/0/0 R1#sh ip ro Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2 E1 - OSPF external type 1, E2 - OSPF external type 2 i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2 ia - IS-IS inter area, * - candidate default, U - per-user static route o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP + - replicated route, % - next hop override Gateway of last resort is not set 172.16.0.0/16 is variably subnetted, 3 subnets, 2 masks C 172.16.2.0/30 is directly connected, Serial0/0/0 L 172.16.2.1/32 is directly connected, Serial0/0/0 C 172.16.2.2/32 is directly connected, Serial0/0/0 R1#conf t Enter configuration commands, one per line. End with CNTL/Z. R1(config)#int s0/0/0 R1(config-if)#no shut R1(config-if)#int f0/1 R1(config-if)#no shut R1(config-if)#^Z R1# *Oct 24 23:09:40.351: %SYS-5-CONFIG_I: Configured from console by console R1# *Oct 24 23:09:40.723: %LINK-3-UPDOWN: Interface FastEthernet0/1, changed state to up *Oct 24 23:09:41.723: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to up R1#sh ip ro Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2 E1 - OSPF external type 1, E2 - OSPF external type 2 i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2 ia - IS-IS inter area, * - candidate default, U - per-user static route o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP + - replicated route, % - next hop override Gateway of last resort is not set 172.16.0.0/16 is variably subnetted, 3 subnets, 2 masks C 172.16.2.0/30 is directly connected, Serial0/0/0 L 172.16.2.1/32 is directly connected, Serial0/0/0 C 172.16.2.2/32 is directly connected, Serial0/0/0 R1#sh ip ro *Oct 24 23:09:53.323: %DHCP-6-ADDRESS_ASSIGN: Interface FastEthernet0/1 assigned DHCP address 10.0.1.11, mask 255.255.255.0, hostname R1 R1#sh ip ro Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2 E1 - OSPF external type 1, E2 - OSPF external type 2 i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2 ia - IS-IS inter area, * - candidate default, U - per-user static route o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP + - replicated route, % - next hop override Gateway of last resort is 10.0.1.1 to network 0.0.0.0 S* 0.0.0.0/0 [254/0] via 10.0.1.1 10.0.0.0/8 is variably subnetted, 2 subnets, 2 masks C 10.0.1.0/24 is directly connected, FastEthernet0/1 L 10.0.1.11/32 is directly connected, FastEthernet0/1 172.16.0.0/16 is variably subnetted, 3 subnets, 2 masks C 172.16.2.0/30 is directly connected, Serial0/0/0 L 172.16.2.1/32 is directly connected, Serial0/0/0 C 172.16.2.2/32 is directly connected, Serial0/0/0 R1#ping 8.8.8.8 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 8.8.8.8, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 4/6/8 ms R1#
R2#sh ip ro Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2 E1 - OSPF external type 1, E2 - OSPF external type 2 i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2 ia - IS-IS inter area, * - candidate default, U - per-user static route o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP + - replicated route, % - next hop override Gateway of last resort is not set 172.16.0.0/32 is subnetted, 2 subnets C 172.16.2.1 is directly connected, Serial0/0/0 C 172.16.2.2 is directly connected, Serial0/0/0 R2#conf t Enter configuration commands, one per line. End with CNTL/Z. R2(config)#int s0/0/0 R2(config-if)#ppp ipcp R2(config-if)#ppp ipcp route defau R2(config-if)#ppp ipcp route default R2(config-if)#shut R2(config-if)# R2(config-if)#nos *Oct 24 23:16:15.547: %LINK-5-CHANGED: Interface Serial0/0/0, changed state to administratively down *Oct 24 23:16:15.555: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to down R2(config-if)#no shut R2(config-if)#^Z R2#debug *Oct 24 23:16:21.011: %SYS-5-CONFIG_I: Configured from console by console *Oct 24 23:16:21.827: %LINK-3-UPDOWN: Interface Serial0/0/0, changed state to up R2#debug pp *Oct 24 23:16:21.871: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to up R2#debug ppp ipcp ^ % Invalid input detected at '^' marker. R2#debug ppp ? authentication CHAP/PAP/MSCHAP/EAP authentication authorization PP authorization bap BAP protocol transactions cbcp Callback Control Protocol negotiation elog PPP ELOGs error Protocol errors and error statistics mppe MPPE Events multilink Multilink activity negotiation Protocol parameter negotiation packet Low-level PPP packet dump subscriber PPP interactions with Subscriber Service Switch and forwarding R2#sh ip ro Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2 E1 - OSPF external type 1, E2 - OSPF external type 2 i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2 ia - IS-IS inter area, * - candidate default, U - per-user static route o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP + - replicated route, % - next hop override Gateway of last resort is 172.16.2.1 to network 0.0.0.0 S* 0.0.0.0/0 [1/0] via 172.16.2.1 172.16.0.0/32 is subnetted, 2 subnets C 172.16.2.1 is directly connected, Serial0/0/0 C 172.16.2.2 is directly connected, Serial0/0/0 R2#ping 8.8.8c^@ Translating "8.8.8c" % Unrecognized host or address, or protocol not running. R2#ping 8.8.8.8 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 8.8.8.8, timeout is 2 seconds: ..... Success rate is 0 percent (0/5) R2#
default route installed via R1 s0/0/0 interface. ping reachability problem may be returned packet or NAT problem.
R1#conf t Enter configuration commands, one per line. End with CNTL/Z. R1(config)#int f0/1 R1(config-if)#ip nat outside *Oct 24 23:16:09.791: %LINEPROTO-5-UPDOWN: Line protocol on Interface NVI0, changed state to up R1(config-if)# R1(config-if)#int s0/0/0 R1(config-if)#ip nat inside R1(config-if)#ip acce R1(config-if)#acce R1(config-if)#access-lis R1(config-if)#exit R1(config)#acce R1(config)#access-list 1 172.16.2.0 0.0.0.3 ^ % Invalid input detected at '^' marker. R1(config)#access-list 1 permit 172.16.2.0 0.0.0.3 R1(config)#ip nat sour R1(config)#ip nat source ac R1(config)#ip nat source li R1(config)#ip nat source list 1 ove R1(config)#ip nat source list 1 int s0/0/0 ove R1(config)#ip nat source list 1 int s0/0/0 overload R1(config)#ip domai R1(config)#ip domain-loo R1(config)#ip domain-lookup R1(config)#ip name R1(config)#do ping www.google.com Translating "www.google.com"...domain server (10.0.1.1) [OK] Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 216.58.197.4, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 12/14/16 ms R1(config)#do sh ip nat translation R1(config)#no ip nat source list 1 int s0/0/0 overload R1(config)#ip nat source list 1 int f0/1 overload R1(config)#do sh ip nat transla R1(config)#do sh ip nat transla R1(config)#^Z R1#sh ip *Oct 24 23:20:52.891: %SYS-5-CONFIG_I: Configured from console by console R1#sh ip acce R1#sh ip access-lists Standard IP access list 1 10 permit 172.16.2.0, wildcard bits 0.0.0.3 R1#
R2#ping 8.8.8.8 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 8.8.8.8, timeout is 2 seconds: ..... Success rate is 0 percent (0/5) R2#ping 8.8.8.8 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 8.8.8.8, timeout is 2 seconds: ..... Success rate is 0 percent (0/5) R2#ping 10.0.1.11 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 10.0.1.11, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 28/29/32 ms R2#
Retry next day.
R1>en R1#conf t Enter configuration commands, one per line. End with CNTL/Z. R1(config)#! R1(config)#username R2 password PG1X R1(config)#! R1(config)#access-list 1 permit 172.16.2.0 0.0.0.3 R1(config)#! R1(config)#ip nat inside source list 1 interface f0/1 overload R1(config)#! R1(config)#int f0/1 R1(config-if)#ip address dhcp R1(config-if)#ip nat outside *Oct 25 21:14:54.107: %LINEPROTO-5-UPDOWN: Line protocol on Interface NVI0, changed state to up R1(config-if)#no shut R1(config-if)#exit R1(config)#! R1(config)#int s0/0/0 R1(config-if)#clock rate 64000 R1(config-if)#ip address 172.16.2.1 255.255.255.252 R1(config-if)#encapsulation ppp R1(config-if)#ppp authentication chap R1(config-if)#peer default ip address 172.16.2.2 R1(config-if)#ip nat inside R1(config-if)#no shut R1(config-if)#exit R1(config)#! R1(config)#end R1# *Oct 25 21:15:06.959: %SYS-5-CONFIG_I: Configured from console by console R1# *Oct 25 21:15:08.871: %LINK-3-UPDOWN: Interface FastEthernet0/1, changed state to up *Oct 25 21:15:08.951: %LINK-3-UPDOWN: Interface Serial0/0/0, changed state to down *Oct 25 21:15:09.871: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to up R1# *Oct 25 21:15:11.647: %LINK-3-UPDOWN: Interface Serial0/0/0, changed state to up R1# *Oct 25 21:15:11.771: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to up R1#sh ip ro Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2 E1 - OSPF external type 1, E2 - OSPF external type 2 i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2 ia - IS-IS inter area, * - candidate default, U - per-user static route o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP + - replicated route, % - next hop override Gateway of last resort is not set 172.16.0.0/16 is variably subnetted, 3 subnets, 2 masks C 172.16.2.0/30 is directly connected, Serial0/0/0 L 172.16.2.1/32 is directly connected, Serial0/0/0 C 172.16.2.2/32 is directly connected, Serial0/0/0 R1#sh ip ro Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2 E1 - OSPF external type 1, E2 - OSPF external type 2 i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2 ia - IS-IS inter area, * - candidate default, U - per-user static route o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP + - replicated route, % - next hop override Gateway of last resort is 10.0.1.1 to network 0.0.0.0 S* 0.0.0.0/0 [254/0] via 10.0.1.1 10.0.0.0/8 is variably subnetted, 2 subnets, 2 masks C 10.0.1.0/24 is directly connected, FastEthernet0/1 L 10.0.1.11/32 is directly connected, FastEthernet0/1 172.16.0.0/16 is variably subnetted, 3 subnets, 2 masks C 172.16.2.0/30 is directly connected, Serial0/0/0 L 172.16.2.1/32 is directly connected, Serial0/0/0 C 172.16.2.2/32 is directly connected, Serial0/0/0 R1# *Oct 25 21:15:17.443: %DHCP-6-ADDRESS_ASSIGN: Interface FastEthernet0/1 assigned DHCP address 10.0.1.11, mask 255.255.255.0, hostname R1 R1#ping 8.8.8.8 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 8.8.8.8, timeout is 2 seconds: !.... Success rate is 20 percent (1/5), round-trip min/avg/max = 8/8/8 ms R1#ping 8.8.8.8 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 8.8.8.8, timeout is 2 seconds: !.... Success rate is 20 percent (1/5), round-trip min/avg/max = 4/4/4 ms R1#sh ip ro Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2 E1 - OSPF external type 1, E2 - OSPF external type 2 i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2 ia - IS-IS inter area, * - candidate default, U - per-user static route o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP + - replicated route, % - next hop override Gateway of last resort is 10.0.1.1 to network 0.0.0.0 S* 0.0.0.0/0 [254/0] via 10.0.1.1 10.0.0.0/8 is variably subnetted, 2 subnets, 2 masks C 10.0.1.0/24 is directly connected, FastEthernet0/1 L 10.0.1.11/32 is directly connected, FastEthernet0/1 172.16.0.0/16 is variably subnetted, 3 subnets, 2 masks C 172.16.2.0/30 is directly connected, Serial0/0/0 L 172.16.2.1/32 is directly connected, Serial0/0/0 C 172.16.2.2/32 is directly connected, Serial0/0/0 R1#ping 172.16.2.2 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 172.16.2.2, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 28/29/32 ms R1#sh ip ro Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2 E1 - OSPF external type 1, E2 - OSPF external type 2 i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2 ia - IS-IS inter area, * - candidate default, U - per-user static route o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP + - replicated route, % - next hop override Gateway of last resort is 10.0.1.1 to network 0.0.0.0 S* 0.0.0.0/0 [254/0] via 10.0.1.1 10.0.0.0/8 is variably subnetted, 2 subnets, 2 masks C 10.0.1.0/24 is directly connected, FastEthernet0/1 L 10.0.1.11/32 is directly connected, FastEthernet0/1 172.16.0.0/16 is variably subnetted, 3 subnets, 2 masks C 172.16.2.0/30 is directly connected, Serial0/0/0 L 172.16.2.1/32 is directly connected, Serial0/0/0 C 172.16.2.2/32 is directly connected, Serial0/0/0 R1#sh ip nat transla R1#sh ip nat translations Pro Inside global Inside local Outside local Outside global icmp 10.0.1.11:0 172.16.2.2:0 8.8.8.8:0 8.8.8.8:0 icmp 10.0.1.11:1 172.16.2.2:1 8.8.8.8:1 8.8.8.8:1 R1#ping 8.8.8.8 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 8.8.8.8, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 8/8/8 ms R1#ip domain-lookup ^ % Invalid input detected at '^' marker. R1#conf t Enter configuration commands, one per line. End with CNTL/Z. R1(config)#ip domain-lookup R1(config)#ip name-servers 8.8.8.8 8.8.4.4 1.1.1.1 ^ % Invalid input detected at '^' marker. R1(config)#ip name-server 8.8.8.8 8.8.4.4 1.1.1.1 R1(config)# R1(config)#^Z R1# *Oct 25 21:21:15.539: %SYS-5-CONFIG_I: Configured from console by console R1#ping www.yahoo.com Translating "www.yahoo.com"...domain server (10.0.1.1) [OK] Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 106.10.250.11, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 76/76/76 ms R1#sh ip nat trans R1#sh ip nat translations Pro Inside global Inside local Outside local Outside global icmp 10.0.1.11:4 172.16.2.2:4 160.16.63.136:4 160.16.63.136:4 udp 10.0.1.11:52686 172.16.2.2:52686 8.8.8.8:53 8.8.8.8:53 R1#sh ip int bri Any interface listed with OK? value "NO" does not have a valid configuration Interface IP-Address OK? Method Status Protocol FastEthernet0/0 unassigned YES NVRAM administratively down down FastEthernet0/1 10.0.1.11 YES DHCP up up Serial0/0/0 172.16.2.1 YES manual up up NVI0 unassigned NO unset up up
*Oct 25 20:27:57.555: %SNMP-5-COLDSTART: SNMP agent on host R2 is undergoing a cold start *Oct 25 20:27:57.927: %CRYPTO-6-ISAKMP_ON_OFF: ISAKMP is OFF *Oct 25 20:27:57.927: %CRYPTO-6-GDOI_ON_OFF: GDOI is OFF *Oct 25 20:27:57.927: %CRYPTO-6-ISAKMP_ON_OFF: ISAKMP is OFF *Oct 25 20:27:57.927: %CRYPTO-6-GDOI_ON_OFF: GDOI is OFF R2>en R2#conf t Enter configuration commands, one per line. End with CNTL/Z. R2(config)#! R2(config)#username R1 password PG1X R2(config)#! R2(config)#int s0/0/0 R2(config-if)#ip address negotiated R2(config-if)#encapsulation ppp R2(config-if)#ppp authentication chap R2(config-if)#ppp ipcp route default R2(config-if)#no shut R2(config-if)#exit R2(config)#! R2(config)#end R2# *Oct 25 21:18:44.075: %SYS-5-CONFIG_I: Configured from console by console R2# *Oct 25 21:18:46.067: %LINK-3-UPDOWN: Interface Serial0/0/0, changed state to up R2#sh *Oct 25 21:18:46.195: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to up R2#sh ip ro Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2 E1 - OSPF external type 1, E2 - OSPF external type 2 i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2 ia - IS-IS inter area, * - candidate default, U - per-user static route o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP + - replicated route, % - next hop override Gateway of last resort is 172.16.2.1 to network 0.0.0.0 S* 0.0.0.0/0 [1/0] via 172.16.2.1 172.16.0.0/32 is subnetted, 2 subnets C 172.16.2.1 is directly connected, Serial0/0/0 C 172.16.2.2 is directly connected, Serial0/0/0 R2#sh ip ro Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2 E1 - OSPF external type 1, E2 - OSPF external type 2 i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2 ia - IS-IS inter area, * - candidate default, U - per-user static route o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP + - replicated route, % - next hop override Gateway of last resort is 172.16.2.1 to network 0.0.0.0 S* 0.0.0.0/0 [1/0] via 172.16.2.1 172.16.0.0/32 is subnetted, 2 subnets C 172.16.2.1 is directly connected, Serial0/0/0 C 172.16.2.2 is directly connected, Serial0/0/0 R2#ping 8.8.8.8 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 8.8.8.8, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 32/36/44 ms R2#ping 8.8.8.8 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 8.8.8.8, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 32/36/44 ms R2#sh ip ro Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2 E1 - OSPF external type 1, E2 - OSPF external type 2 i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2 ia - IS-IS inter area, * - candidate default, U - per-user static route o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP + - replicated route, % - next hop override Gateway of last resort is 172.16.2.1 to network 0.0.0.0 S* 0.0.0.0/0 [1/0] via 172.16.2.1 172.16.0.0/32 is subnetted, 2 subnets C 172.16.2.1 is directly connected, Serial0/0/0 C 172.16.2.2 is directly connected, Serial0/0/0 R2#ping 172.16.2.1 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 172.16.2.1, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 28/28/28 ms R2#sh ip ro Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2 E1 - OSPF external type 1, E2 - OSPF external type 2 i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2 ia - IS-IS inter area, * - candidate default, U - per-user static route o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP + - replicated route, % - next hop override Gateway of last resort is 172.16.2.1 to network 0.0.0.0 S* 0.0.0.0/0 [1/0] via 172.16.2.1 172.16.0.0/32 is subnetted, 2 subnets C 172.16.2.1 is directly connected, Serial0/0/0 C 172.16.2.2 is directly connected, Serial0/0/0 R2#sh ip nat transla R2#sh ip nat translations R2#ip domain-lookup ^ % Invalid input detected at '^' marker. R2#conf t Enter configuration commands, one per line. End with CNTL/Z. R2(config)#ip domain-lookup R2(config)#ip name-servers 8.8.8.8 8.8.4.4 1.1.1.1 ^ % Invalid input detected at '^' marker. R2(config)#ip name-server 8.8.8.8 8.8.4.4 1.1.1.1 R2(config)#^Z R2# *Oct 25 21:24:49.959: %SYS-5-CONFIG_I: Configured from console by console R2#ping pg1x.com Translating "pg1x.com"...domain server (8.8.8.8) [OK] Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 160.16.63.136, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 32/33/36 ms R2#ping 10.0.1.11 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 10.0.1.11, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 28/29/32 ms R2#sh ip int brie R2#sh ip int brief Interface IP-Address OK? Method Status Protocol FastEthernet0/0 unassigned YES NVRAM administratively down down FastEthernet0/1 unassigned YES NVRAM administratively down down Serial0/0/0 172.16.2.2 YES IPCP up up
result is successful.
Multilink PPP it also called MLP.
R1>en R1#conf t Enter configuration commands, one per line. End with CNTL/Z. R1(config)#int mul R1(config)#int multilink ? <1-2147483647> Multilink interface number R1(config)#int multilink 1 R1(config-if)#ip address 172.16.2.1 255.255.255.252 R1(config-if)#ppp mul R1(config-if)#ppp multilink R1(config-if)#ppp mu R1(config-if)#ppp multilink gr R1(config-if)#ppp multilink group ? <1-2147483647> Multilink group number R1(config-if)#ppp multilink group 1 R1(config-if)#exit R1(config)#int s0/0/0 R1(config-if)#no ip address R1(config-if)#enca R1(config-if)#encapsulation ppp R1(config-if)#ppp mu R1(config-if)#ppp multilink gr R1(config-if)#ppp multilink group 1 R1(config-if)#no shut R1(config-if)#exit R1(config)# *Oct 25 22:41:07.583: %LINK-3-UPDOWN: Interface Serial0/0/0, changed state to up *Oct 25 22:41:07.643: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to up *Oct 25 22:41:07.655: %LINK-3-UPDOWN: Interface Multilink1, changed state to up R1(config)# *Oct 25 22:41:07.663: %LINEPROTO-5-UPDOWN: Line protocol on Interface Multilink1, changed state to up R1(config)#do sh ip int brief Interface IP-Address OK? Method Status Protocol FastEthernet0/0 unassigned YES NVRAM administratively down down FastEthernet0/1 unassigned YES NVRAM administratively down down Serial0/0/0 unassigned YES NVRAM up up Multilink1 172.16.2.1 YES manual up up R1(config)#ping 172.16.2.2 ^ % Invalid input detected at '^' marker. R1(config)#do ping 172.16.2.2 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 172.16.2.2, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/4 ms R1(config)#int s0/0/0 R1(config-if)#shut R1(config-if)# *Oct 25 22:41:59.667: %LINK-5-CHANGED: Interface Serial0/0/0, changed state to administratively down *Oct 25 22:41:59.675: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to down *Oct 25 22:41:59.675: %LINK-3-UPDOWN: Interface Multilink1, changed state to down R1(config-if)# *Oct 25 22:41:59.679: %LINEPROTO-5-UPDOWN: Line protocol on Interface Multilink1, changed state to down R1(config-if)#do sh ip int brief Interface IP-Address OK? Method Status Protocol FastEthernet0/0 unassigned YES NVRAM administratively down down FastEthernet0/1 unassigned YES NVRAM administratively down down Serial0/0/0 unassigned YES NVRAM administratively down down Multilink1 172.16.2.1 YES manual down down R1(config-if)#no shut R1(config-if)# *Oct 25 22:42:25.439: %LINK-3-UPDOWN: Interface Serial0/0/0, changed state to up *Oct 25 22:42:25.483: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to up *Oct 25 22:42:25.491: %LINK-3-UPDOWN: Interface Multilink1, changed state to up R1(config-if)# *Oct 25 22:42:25.495: %LINEPROTO-5-UPDOWN: Line protocol on Interface Multilink1, changed state to up R1(config-if)#exit R1(config)#user R1(config)#userna R1(config)#username R2 pass R1(config)#username R2 password pg1x R1(config)#int multi1 R1(config-if)#no shut R1(config-if)#shut R1(config-if)# *Oct 25 22:45:59.943: %LINK-5-CHANGED: Interface Multilink1, changed state to administratively down *Oct 25 22:45:59.951: %LINEPROTO-5-UPDOWN: Line protocol on Interface Multilink1, changed state to down R1(config-if)# *Oct 25 22:46:01.963: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to down R1(config-if)#do sh ip *Oct 25 22:46:03.963: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to up R1(config-if)#do sh ip int brief Interface IP-Address OK? Method Status Protocol FastEthernet0/0 unassigned YES NVRAM administratively down down FastEthernet0/1 unassigned YES NVRAM administratively down down Serial0/0/0 unassigned YES NVRAM up up Multilink1 172.16.2.1 YES manual administratively down down R1(config-if)#username R2 password pg1xpg1x R1(config)#int multi1 R1(config-if)#ppp auth R1(config-if)#ppp authen R1(config-if)#ppp authentication chap R1(config-if)# *Oct 25 22:46:51.319: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to down R1(config-if)# *Oct 25 22:46:55.367: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to up *Oct 25 22:46:55.419: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to down R1(config-if)#do debug *Oct 25 22:46:59.443: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to up *Oct 25 22:46:59.451: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to down R1(config-if)#do debug ppp auth % Ambiguous command: "do debug ppp auth" R1(config-if)#do debug ppp auth *Oct 25 22:47:03.475: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to up *Oct 25 22:47:03.483: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to down R1(config-if)#do debug ppp auth % Ambiguous command: "debug ppp auth" R1(config-if)#do debug ppp authen % Ambiguous command: "do debug ppp authen" R1(config-if)#do debug ppp authenti % Ambiguous command: "do debug ppp authenti" R1(config-if)#do debug ppp authenti *Oct 25 22:47:07.507: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to up *Oct 25 22:47:07.515: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to down R1(config-if)#do debug ppp authentication PPP authentication debugging is on R1(config-if)# *Oct 25 22:47:11.539: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to up *Oct 25 22:47:11.547: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to down R1(config-if)# *Oct 25 22:47:13.527: Se0/0/0 PPP: Using default call direction *Oct 25 22:47:13.527: Se0/0/0 PPP: Treating connection as a dedicated line *Oct 25 22:47:13.527: Se0/0/0 PPP: Session handle[CE00000C] Session id[11] *Oct 25 22:47:13.559: Se0/0/0 CHAP: O CHALLENGE id 1 len 23 from "R1" *Oct 25 22:47:13.559: Se0/0/0 CHAP: I CHALLENGE id 1 len 23 from "R2" *Oct 25 22:47:13.559: Se0/0/0 PPP: Sent CHAP SENDAUTH Request *Oct 25 22:47:13.559: Se0/0/0 PPP: Received SENDAUTH Response PASS *Oct 25 22:47:13.559: Se0/0/0 CHAP: Using hostname from configured hostname *Oct 25 22:47:13.559: Se0/0/0 CHAP: Using password from AAA R1(config-if)# *Oct 25 22:47:13.559: Se0/0/0 CHAP: O RESPONSE id 1 len 23 from "R1" *Oct 25 22:47:13.563: Se0/0/0 CHAP: I RESPONSE id 1 len 23 from "R2" *Oct 25 22:47:13.563: Se0/0/0 PPP: Sent CHAP LOGIN Request *Oct 25 22:47:13.563: Se0/0/0 PPP: Received LOGIN Response FAIL *Oct 25 22:47:13.567: Se0/0/0 CHAP: O FAILURE id 1 len 25 msg is "Authentication failed" R1(config-if)# *Oct 25 22:47:15.571: Se0/0/0 PPP: Using default call direction *Oct 25 22:47:15.575: Se0/0/0 PPP: Treating connection as a dedicated line *Oct 25 22:47:15.575: Se0/0/0 PPP: Session handle[ED00000D] Session id[12] *Oct 25 22:47:15.607: Se0/0/0 CHAP: O CHALLENGE id 1 len 23 from "R1" *Oct 25 22:47:15.607: Se0/0/0 CHAP: I CHALLENGE id 1 len 23 from "R2" *Oct 25 22:47:15.607: Se0/0/0 PPP: Sent CHAP SENDAUTH Request *Oct 25 22:47:15.607: Se0/0/0 PPP: Received SENDAUTH Response PASS *Oct 25 22:47:15.607: Se0/0/0 CHAP: Using hostname from configured hostname *Oct 25 22:47:15.607: Se0/0/0 CHAP: Using password from AAA R1(config-if)# *Oct 25 22:47:15.607: Se0/0/0 CHAP: O RESPONSE id 1 len 23 from "R1" *Oct 25 22:47:15.611: Se0/0/0 CHAP: I RESPONSE id 1 len 23 from "R2" *Oct 25 22:47:15.611: Se0/0/0 PPP: Sent CHAP LOGIN Request *Oct 25 22:47:15.611: Se0/0/0 PPP: Received LOGIN Response FAIL *Oct 25 22:47:15.615: Se0/0/0 CHAP: O FAILURE id 1 len 25 msg is "Authentication failed" R1(config-if)# *Oct 25 22:47:17.619: Se0/0/0 PPP: Using default call direction *Oct 25 22:47:17.619: Se0/0/0 PPP: Treating connection as a dedicated line *Oct 25 22:47:17.619: Se0/0/0 PPP: Session handle[F100000E] Session id[13] *Oct 25 22:47:17.623: Se0/0/0 CHAP: O CHALLENGE id 1 len 23 from "R1" *Oct 25 22:47:17.651: Se0/0/0 CHAP: I CHALLENGE id 1 len 23 from "R2" *Oct 25 22:47:17.651: Se0/0/0 PPP: Sent CHAP SENDAUTH Request *Oct 25 22:47:17.655: Se0/0/0 PPP: Received SENDAUTH Response PASS *Oct 25 22:47:17.655: Se0/0/0 CHAP: Using hostname from configured hostname *Oct 25 22:47:17.655: Se0/0/0 CHAP: Using password from AAA R1(config-if)# *Oct 25 22:47:17.655: Se0/0/0 CHAP: O RESPONSE id 1 len 23 from "R1" *Oct 25 22:47:17.655: Se0/0/0 CHAP: I RESPONSE id 1 len 23 from "R2" *Oct 25 22:47:17.655: Se0/0/0 PPP: Sent CHAP LOGIN Request *Oct 25 22:47:17.659: Se0/0/0 PPP: Received LOGIN Response FAIL *Oct 25 22:47:17.659: Se0/0/0 CHAP: O FAILURE id 1 len 25 msg is "Authentication failed" R1(config-if)# *Oct 25 22:47:20.663: Se0/0/0 PPP: Using default call direction *Oct 25 22:47:20.663: Se0/0/0 PPP: Treating connection as a dedicated line *Oct 25 22:47:20.663: Se0/0/0 PPP: Session handle[4700000F] Session id[14] *Oct 25 22:47:20.695: Se0/0/0 CHAP: O CHALLENGE id 1 len 23 from "R1" *Oct 25 22:47:20.695: Se0/0/0 CHAP: I CHALLENGE id 1 len 23 from "R2" *Oct 25 22:47:20.695: Se0/0/0 PPP: Sent CHAP SENDAUTH Request *Oct 25 22:47:20.695: Se0/0/0 PPP: Received SENDAUTH Response PASS *Oct 25 22:47:20.695: Se0/0/0 CHAP: Using hostname from configured hostname *Oct 25 22:47:20.695: Se0/0/0 CHAP: Using password from AAA R1(config-if)# *Oct 25 22:47:20.695: Se0/0/0 CHAP: O RESPONSE id 1 len 23 from "R1" *Oct 25 22:47:20.699: Se0/0/0 CHAP: I RESPONSE id 1 len 23 from "R2" *Oct 25 22:47:20.699: Se0/0/0 PPP: Sent CHAP LOGIN Request *Oct 25 22:47:20.699: Se0/0/0 PPP: Received LOGIN Response FAIL *Oct 25 22:47:20.703: Se0/0/0 CHAP: O FAILURE id 1 len 25 msg is "Authentication failed" R1(config-if)#username R2 password pg1x *Oct 25 22:47:25.707: Se0/0/0 PPP: Using default call direction *Oct 25 22:47:25.707: Se0/0/0 PPP: Treating connection as a dedicated line *Oct 25 22:47:25.707: Se0/0/0 PPP: Session handle[FA000010] Session id[15] *Oct 25 22:47:25.719: Se0/0/0 CHAP: O CHALLENGE id 1 len 23 from "R1" *Oct 25 22:47:25.719: Se0/0/0 CHAP: I CHALLENGE id 1 len 23 from "R2" *Oct 25 22:47:25.719: Se0/0/0 PPP: Sent CHAP SENDAUTH Request *Oct 25 22:47:25.719: Se0/0/0 PPP: Received SENDAUTH Response PASS *Oct 25 22:47:25.719: Se0/0/0 CHAP: Using hostname from configured hostname *Oct 25 22:47:25.719: Se0/0/0 CHAP: Using password from AAA R1(config-if)#username R2 password pg1x *Oct 25 22:47:25.719: Se0/0/0 CHAP: O RESPONSE id 1 len 23 from "R1" *Oct 25 22:47:25.723: Se0/0/0 CHAP: I RESPONSE id 1 len 23 from "R2" *Oct 25 22:47:25.723: Se0/0/0 PPP: Sent CHAP LOGIN Request *Oct 25 22:47:25.723: Se0/0/0 PPP: Received LOGIN Response FAIL *Oct 25 22:47:25.727: Se0/0/0 CHAP: O FAILURE id 1 len 25 msg is "Authentication failed" R1(config-if)#username R2 password pg1x R1(config)# *Oct 25 22:47:27.735: Se0/0/0 PPP: Using default call direction *Oct 25 22:47:27.735: Se0/0/0 PPP: Treating connection as a dedicated line *Oct 25 22:47:27.735: Se0/0/0 PPP: Session handle[E000011] Session id[16] *Oct 25 22:47:27.767: Se0/0/0 CHAP: O CHALLENGE id 1 len 23 from "R1" *Oct 25 22:47:27.767: Se0/0/0 CHAP: I CHALLENGE id 1 len 23 from "R2" *Oct 25 22:47:27.767: Se0/0/0 PPP: Sent CHAP SENDAUTH Request *Oct 25 22:47:27.767: Se0/0/0 PPP: Received SENDAUTH Response PASS *Oct 25 22:47:27.767: Se0/0/0 CHAP: Using hostname from configured hostname *Oct 25 22:47:27.767: Se0/0/0 CHAP: Using password from AAA *Oct 25 22:47:27.767: Se0/0/0 CHAP: O RESPONSE id 1 len 23 from "R1" *Oct 25 22:47:27.771: Se0/0/0 CHAP: I RESPONSE id 1 len 23 from "R2" *Oct 25 22:47:27.771: Se0/0/0 PPP: Sent CHAP LOGIN Request *Oct 25 22:47:27.771: Se0/0/0 PPP: Received LOGIN Response PASS *Oct 25 22:47:27.795: Se0/0/0 CHAP: O SUCCESS id 1 len 4 *Oct 25 22:47:27.795: Se0/0/0 CHAP: I SUCCESS id 1 len 4 R1(config)# *Oct 25 22:47:27.799: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to up R1(config)#u all ^ % Invalid input detected at '^' marker. R1(config)#do u all All possible debugging has been turned off R1(config)#^Z R1#ping *Oct 25 22:50:24.707: %SYS-5-CONFIG_I: Configured from console by console R1#sh ip intb ^ % Invalid input detected at '^' marker. R1#sh ip int b Interface IP-Address OK? Method Status Protocol FastEthernet0/0 unassigned YES NVRAM administratively down down FastEthernet0/1 unassigned YES NVRAM administratively down down Serial0/0/0 unassigned YES NVRAM up up Multilink1 172.16.2.1 YES manual administratively down down R1#ping 172.16.2.2 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 172.16.2.2, timeout is 2 seconds: ..... Success rate is 0 percent (0/5) R1#conf t Enter configuration commands, one per line. End with CNTL/Z. R1(config)#int ml1 ^ % Invalid input detected at '^' marker. R1(config)#int m1 ^ % Invalid input detected at '^' marker. R1(config)#int mult1 R1(config-if)#no shut R1(config-if)# *Oct 25 22:51:32.623: %LINK-3-UPDOWN: Interface Multilink1, changed state to down R1(config-if)# *Oct 25 22:51:32.627: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to down R1(config-if)# *Oct 25 22:51:34.687: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to up *Oct 25 22:51:34.695: %LINK-3-UPDOWN: Interface Multilink1, changed state to up R1(config-if)# *Oct 25 22:51:34.699: %LINEPROTO-5-UPDOWN: Line protocol on Interface Multilink1, changed state to up R1(config-if)#do sh ip int brief Interface IP-Address OK? Method Status Protocol FastEthernet0/0 unassigned YES NVRAM administratively down down FastEthernet0/1 unassigned YES NVRAM administratively down down Serial0/0/0 unassigned YES NVRAM up up Multilink1 172.16.2.1 YES manual up up R1(config-if)#ping 172.16.2.2 ^ % Invalid input detected at '^' marker. R1(config-if)#do ping 172.16.2.2 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 172.16.2.2, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 1/3/4 ms R1(config-if)#
R2>en R2#conf t Enter configuration commands, one per line. End with CNTL/Z. R2(config)#int mul R2(config)#int multilink ? <1-2147483647> Multilink interface number R2(config)#int multilink 1 R2(config-if)#ip address 172.16.2.2 255.255.255.252 R2(config-if)#ppp mul R2(config-if)#ppp multilink R2(config-if)#ppp mu R2(config-if)#ppp multilink gr R2(config-if)#ppp multilink group ? <1-2147483647> Multilink group number R2(config-if)#ppp multilink group 1 R2(config-if)#exit R2(config)#int s0/0/0 R2(config-if)#no ip address R2(config-if)#enca R2(config-if)#encapsulation ppp R2(config-if)#ppp mu R2(config-if)#ppp multilink gr R2(config-if)#ppp multilink group 1 R2(config-if)#no shut R2(config-if)#exit R2(config)# *Oct 25 22:44:43.079: %LINK-3-UPDOWN: Interface Serial0/0/0, changed state to up *Oct 25 22:44:43.143: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to up *Oct 25 22:44:43.155: %LINK-3-UPDOWN: Interface Multilink1, changed state to up R2(config)# *Oct 25 22:44:43.163: %LINEPROTO-5-UPDOWN: Line protocol on Interface Multilink1, changed state to up R2(config)#do sh ip int brief Interface IP-Address OK? Method Status Protocol FastEthernet0/0 unassigned YES NVRAM administratively down down FastEthernet0/1 unassigned YES NVRAM administratively down down Serial0/0/0 unassigned YES NVRAM up up Multilink1 172.16.2.2 YES manual up up R2(config)#ping 172.16.2.1 ^ % Invalid input detected at '^' marker. R2(config)#do ping 172.16.2.1 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 172.16.2.1, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 1/2/4 ms R2(config)# *Oct 25 22:45:35.171: %LINK-3-UPDOWN: Interface Serial0/0/0, changed state to down *Oct 25 22:45:35.179: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to down *Oct 25 22:45:35.179: %LINK-3-UPDOWN: Interface Multilink1, changed state to down R2(config)# *Oct 25 22:45:35.183: %LINEPROTO-5-UPDOWN: Line protocol on Interface Multilink1, changed state to down R2(config)# *Oct 25 22:46:00.943: %LINK-3-UPDOWN: Interface Serial0/0/0, changed state to up *Oct 25 22:46:00.967: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to up *Oct 25 22:46:00.975: %LINK-3-UPDOWN: Interface Multilink1, changed state to up R2(config)# *Oct 25 22:46:00.979: %LINEPROTO-5-UPDOWN: Line protocol on Interface Multilink1, changed state to up R2(config-if)#do debug ppp auth % Ambiguous command: "do debug ppp auth" R2(config-if)#do debug ppp auth % Ambiguous command: "debug ppp auth" R2(config-if)#do debug ppp authen % Ambiguous command: "do debug ppp authen" R2(config-if)#do debug ppp authenti % Ambiguous command: "do debug ppp authenti" R2(config-if)#do debug ppp authentication PPP authentication debugging is on R2(config-if)# *Oct 25 22:50:47.039: Se0/0/0 PPP: Using default call direction *Oct 25 22:50:47.039: Se0/0/0 PPP: Treating connection as a dedicated line *Oct 25 22:50:47.043: Se0/0/0 PPP: Session handle[8A00000C] Session id[11] R2(config-if)# *Oct 25 22:50:49.059: Se0/0/0 CHAP: O CHALLENGE id 1 len 23 from "R2" *Oct 25 22:50:49.063: Se0/0/0 CHAP: I CHALLENGE id 1 len 23 from "R1" *Oct 25 22:50:49.063: Se0/0/0 PPP: Sent CHAP SENDAUTH Request *Oct 25 22:50:49.063: Se0/0/0 PPP: Received SENDAUTH Response PASS *Oct 25 22:50:49.063: Se0/0/0 CHAP: Using hostname from configured hostname *Oct 25 22:50:49.063: Se0/0/0 CHAP: Using password from AAA *Oct 25 22:50:49.063: Se0/0/0 CHAP: O RESPONSE id 1 len 23 from "R2" *Oct 25 22:50:49.063: Se0/0/0 CHAP: I RESPONSE id 1 len 23 from "R1" *Oct 25 22:50:49.067: Se0/0/0 PPP: Sent CHAP LOGIN Request *Oct 25 22:50:49.067: Se0/0/0 PPP: Received LOGIN Response FAIL R2(config-if)# *Oct 25 22:50:49.067: Se0/0/0 CHAP: O FAILURE id 1 len 25 msg is "Authentication failed" R2(config-if)# *Oct 25 22:50:51.071: Se0/0/0 PPP: Using default call direction *Oct 25 22:50:51.071: Se0/0/0 PPP: Treating connection as a dedicated line *Oct 25 22:50:51.071: Se0/0/0 PPP: Session handle[1100000D] Session id[12] *Oct 25 22:50:51.107: Se0/0/0 CHAP: O CHALLENGE id 1 len 23 from "R2" *Oct 25 22:50:51.111: Se0/0/0 CHAP: I CHALLENGE id 1 len 23 from "R1" *Oct 25 22:50:51.111: Se0/0/0 PPP: Sent CHAP SENDAUTH Request *Oct 25 22:50:51.111: Se0/0/0 PPP: Received SENDAUTH Response PASS *Oct 25 22:50:51.111: Se0/0/0 CHAP: Using hostname from configured hostname *Oct 25 22:50:51.111: Se0/0/0 CHAP: Using password from AAA R2(config-if)# *Oct 25 22:50:51.111: Se0/0/0 CHAP: O RESPONSE id 1 len 23 from "R2" *Oct 25 22:50:51.111: Se0/0/0 CHAP: I RESPONSE id 1 len 23 from "R1" *Oct 25 22:50:51.115: Se0/0/0 PPP: Sent CHAP LOGIN Request *Oct 25 22:50:51.115: Se0/0/0 PPP: Received LOGIN Response FAIL *Oct 25 22:50:51.115: Se0/0/0 CHAP: O FAILURE id 1 len 25 msg is "Authentication failed" R2(config-if)# *Oct 25 22:50:53.119: Se0/0/0 PPP: Using default call direction *Oct 25 22:50:53.119: Se0/0/0 PPP: Treating connection as a dedicated line *Oct 25 22:50:53.119: Se0/0/0 PPP: Session handle[700000E] Session id[13] *Oct 25 22:50:53.155: Se0/0/0 CHAP: O CHALLENGE id 1 len 23 from "R2" *Oct 25 22:50:53.155: Se0/0/0 CHAP: I CHALLENGE id 1 len 23 from "R1" *Oct 25 22:50:53.155: Se0/0/0 PPP: Sent CHAP SENDAUTH Request *Oct 25 22:50:53.155: Se0/0/0 PPP: Received SENDAUTH Response PASS *Oct 25 22:50:53.155: Se0/0/0 CHAP: Using hostname from configured hostname *Oct 25 22:50:53.155: Se0/0/0 CHAP: Using password from AAA R2(config-if)# *Oct 25 22:50:53.155: Se0/0/0 CHAP: O RESPONSE id 1 len 23 from "R2" *Oct 25 22:50:53.159: Se0/0/0 CHAP: I RESPONSE id 1 len 23 from "R1" *Oct 25 22:50:53.159: Se0/0/0 PPP: Sent CHAP LOGIN Request *Oct 25 22:50:53.159: Se0/0/0 PPP: Received LOGIN Response FAIL *Oct 25 22:50:53.163: Se0/0/0 CHAP: O FAILURE id 1 len 25 msg is "Authentication failed" R2(config-if)# *Oct 25 22:50:56.167: Se0/0/0 PPP: Using default call direction *Oct 25 22:50:56.167: Se0/0/0 PPP: Treating connection as a dedicated line *Oct 25 22:50:56.167: Se0/0/0 PPP: Session handle[A600000F] Session id[14] *Oct 25 22:50:56.195: Se0/0/0 CHAP: O CHALLENGE id 1 len 23 from "R2" *Oct 25 22:50:56.199: Se0/0/0 CHAP: I CHALLENGE id 1 len 23 from "R1" *Oct 25 22:50:56.199: Se0/0/0 PPP: Sent CHAP SENDAUTH Request *Oct 25 22:50:56.199: Se0/0/0 PPP: Received SENDAUTH Response PASS *Oct 25 22:50:56.199: Se0/0/0 CHAP: Using hostname from configured hostname *Oct 25 22:50:56.199: Se0/0/0 CHAP: Using password from AAA R2(config-if)# *Oct 25 22:50:56.199: Se0/0/0 CHAP: O RESPONSE id 1 len 23 from "R2" *Oct 25 22:50:56.199: Se0/0/0 CHAP: I RESPONSE id 1 len 23 from "R1" *Oct 25 22:50:56.203: Se0/0/0 PPP: Sent CHAP LOGIN Request *Oct 25 22:50:56.203: Se0/0/0 PPP: Received LOGIN Response FAIL *Oct 25 22:50:56.203: Se0/0/0 CHAP: O FAILURE id 1 len 25 msg is "Authentication failed" R2(config-if)# *Oct 25 22:51:01.215: Se0/0/0 PPP: Using default call direction *Oct 25 22:51:01.215: Se0/0/0 PPP: Treating connection as a dedicated line *Oct 25 22:51:01.215: Se0/0/0 PPP: Session handle[E6000010] Session id[15] *Oct 25 22:51:01.219: Se0/0/0 CHAP: O CHALLENGE id 1 len 23 from "R2" *Oct 25 22:51:01.223: Se0/0/0 CHAP: I CHALLENGE id 1 len 23 from "R1" *Oct 25 22:51:01.223: Se0/0/0 PPP: Sent CHAP SENDAUTH Request *Oct 25 22:51:01.223: Se0/0/0 PPP: Received SENDAUTH Response PASS *Oct 25 22:51:01.223: Se0/0/0 CHAP: Using hostname from configured hostname *Oct 25 22:51:01.223: Se0/0/0 CHAP: Using password from AAA R2(config-if)# *Oct 25 22:51:01.223: Se0/0/0 CHAP: O RESPONSE id 1 len 23 from "R2" *Oct 25 22:51:01.223: Se0/0/0 CHAP: I RESPONSE id 1 len 23 from "R1" *Oct 25 22:51:01.227: Se0/0/0 PPP: Sent CHAP LOGIN Request *Oct 25 22:51:01.227: Se0/0/0 PPP: Received LOGIN Response FAIL *Oct 25 22:51:01.227: Se0/0/0 CHAP: O FAILURE id 1 len 25 msg is "Authentication failed" R2(config-if)# R2(config-if)# *Oct 25 22:51:03.231: Se0/0/0 PPP: Using default call direction *Oct 25 22:51:03.231: Se0/0/0 PPP: Treating connection as a dedicated line *Oct 25 22:51:03.231: Se0/0/0 PPP: Session handle[7D000011] Session id[16] *Oct 25 22:51:03.267: Se0/0/0 CHAP: O CHALLENGE id 1 len 23 from "R2" *Oct 25 22:51:03.271: Se0/0/0 CHAP: I CHALLENGE id 1 len 23 from "R1" *Oct 25 22:51:03.271: Se0/0/0 PPP: Sent CHAP SENDAUTH Request *Oct 25 22:51:03.271: Se0/0/0 PPP: Received SENDAUTH Response PASS *Oct 25 22:51:03.271: Se0/0/0 CHAP: Using hostname from configured hostname *Oct 25 22:51:03.271: Se0/0/0 CHAP: Using password from AAA *Oct 25 22:51:03.271: Se0/0/0 CHAP: O RESPONSE id 1 len 23 from "R2" *Oct 25 22:51:03.271: Se0/0/0 CHAP: I RESPONSE id 1 len 23 from "R1" *Oct 25 22:51:03.275: Se0/0/0 PPP: Sent CHAP LOGIN Request *Oct 25 22:51:03.275: Se0/0/0 PPP: Received LOGIN Response PASS *Oct 25 22:51:03.299: Se0/0/0 CHAP: O SUCCESS id 1 len 4 *Oct 25 22:51:03.299: Se0/0/0 CHAP: I SUCCESS id 1 len 4 R2(config-if)# *Oct 25 22:51:03.303: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to up R2(config-if)#u all ^ % Invalid input detected at '^' marker. R2(config-if)#do u all All possible debugging has been turned off R2(config-if)# R2(config-if)#^Z R2#ping *Oct 25 22:54:00.215: %SYS-5-CONFIG_I: Configured from console by console R2#sh ip intb ^ % Invalid input detected at '^' marker. R2#sh ip int b Interface IP-Address OK? Method Status Protocol FastEthernet0/0 unassigned YES NVRAM administratively down down FastEthernet0/1 unassigned YES NVRAM administratively down down Serial0/0/0 unassigned YES NVRAM up up Multilink1 172.16.2.2 YES manual administratively down down R2#ping 172.16.2.1 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 172.16.2.1, timeout is 2 seconds: ..... Success rate is 0 percent (0/5) R2#conf t Enter configuration commands, one per line. End with CNTL/Z. R2(config)#int ml1 ^ % Invalid input detected at '^' marker. R2(config)#int m1 ^ % Invalid input detected at '^' marker. R2(config)#int mult1 R2(config-if)#no shut R2(config-if)# *Oct 25 22:55:08.127: %LINK-3-UPDOWN: Interface Multilink1, changed state to down R2(config-if)# *Oct 25 22:55:08.131: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to down R2(config-if)# *Oct 25 22:55:10.191: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to up *Oct 25 22:55:10.199: %LINK-3-UPDOWN: Interface Multilink1, changed state to up R2(config-if)# *Oct 25 22:55:10.203: %LINEPROTO-5-UPDOWN: Line protocol on Interface Multilink1, changed state to up R2(config-if)#do sh ip int brief Interface IP-Address OK? Method Status Protocol FastEthernet0/0 unassigned YES NVRAM administratively down down FastEthernet0/1 unassigned YES NVRAM administratively down down Serial0/0/0 unassigned YES NVRAM up up Multilink1 172.16.2.2 YES manual up up R2(config-if)#ping 172.16.2.1 ^ % Invalid input detected at '^' marker. R2(config-if)#do ping 172.16.2.1 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 172.16.2.1, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 1/3/8 ms R2(config-if)#