tech:network:cisco:wan-serial:wan-serial
Table of Contents
WAN basics
V.35 back to back connection.
R1#sh controllers s0/0/0
Interface Serial0/0/0
Hardware is GT96K
DCE V.35, clock rate 2000000
idb at 0x66C0F420, driver data structure at 0x66C16C3C
wic_info 0x66C17268
Physical Port 0, SCC Num 0
MPSC Registers:
MMCR_L=0x00030400, MMCR_H=0x00000000, MPCR=0x00000000
CHR1=0x00FE007E, CHR2=0x00000000, CHR3=0x0000064A, CHR4=0x00000000
CHR5=0x00000000, CHR6=0x00000000, CHR7=0x00000000, CHR8=0x00000000
CHR9=0x00000000, CHR10=0x00002003
SDMA Registers:
SDC=0x00002201, SDCM=0x00000000, SGC=0x0000C000
CRDP=0x161D1720, CTDP=0x161D1960, FTDB=0x161D1960
Main Routing Register=0x0003FFF8 BRG Conf Register=0x00490013
Rx Clk Routing Register=0x76543218 Tx Clk Routing Register=0x76543210
GPP Registers:
Conf=0x430002 , Io=0x464050 , Data=0x7F57FFAB, Level=0x80004
Conf0=0x430002 , Io0=0x464050 , Data0=0x7F57FFAB, Level0=0x80004
0 input aborts on receiving flag sequence
0 throttles, 0 enables
0 overruns
0 transmitter underruns
R1#conf t
Enter configuration commands, one per line. End with CNTL/Z.
R1(config)#int s0/0/0
R1(config-if)#clo
R1(config-if)#clock ra
R1(config-if)#clock rate ?
Speed (bits per second)
1200
2400
4800
9600
14400
19200
28800
32000
38400
48000
56000
57600
64000
72000
115200
125000
128000
148000
192000
250000
256000
320000
384000
500000
512000
640000
704000
768000
800000
1000000
1024000
1200000
1536000
2000000
4000000
8000000
<300-8000000> Choose clockrate from list above
R1(config-if)#clock rate 64000
R1(config-if)#do sh run int s0/0/0
Building configuration...
Current configuration : 87 bytes
!
interface Serial0/0/0
no ip address
shutdown
no fair-queue
clock rate 64000
end
R1(config-if)#do sh controllers s0/0/0
Interface Serial0/0/0
Hardware is GT96K
DCE V.35, clock rate 64000
idb at 0x66C0F420, driver data structure at 0x66C16C3C
wic_info 0x66C17268
Physical Port 0, SCC Num 0
MPSC Registers:
MMCR_L=0x00030400, MMCR_H=0x00000000, MPCR=0x00000000
CHR1=0x00FE007E, CHR2=0x00000000, CHR3=0x0000064A, CHR4=0x00000000
CHR5=0x00000000, CHR6=0x00000000, CHR7=0x00000000, CHR8=0x00000000
CHR9=0x00000000, CHR10=0x00002003
SDMA Registers:
SDC=0x00002201, SDCM=0x00000000, SGC=0x0000C000
CRDP=0x161D1720, CTDP=0x161D1960, FTDB=0x161D1960
Main Routing Register=0x0003FFF8 BRG Conf Register=0x00490013
Rx Clk Routing Register=0x76543218 Tx Clk Routing Register=0x76543210
GPP Registers:
Conf=0x430002 , Io=0x464050 , Data=0x7F57FFAB, Level=0x80004
Conf0=0x430002 , Io0=0x464050 , Data0=0x7F57FFAB, Level0=0x80004
0 input aborts on receiving flag sequence
0 throttles, 0 enables
0 overruns
0 transmitter underruns
R1(config-if)#do sh int s0/0/0
Serial0/0/0 is administratively down, line protocol is down
Hardware is GT96K Serial
MTU 1500 bytes, BW 1544 Kbit/sec, DLY 20000 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation HDLC, loopback not set
Keepalive set (10 sec)
CRC checking enabled
Last input never, output 00:21:39, output hang never
Last clearing of "show interface" counters never
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
0 packets input, 0 bytes, 0 no buffer
Received 0 broadcasts (0 IP multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
1 packets output, 24 bytes, 0 underruns
0 output errors, 0 collisions, 5 interface resets
0 unknown protocol drops
0 output buffer failures, 0 output buffers swapped out
1 carrier transitions
DCD=down DSR=down DTR=down RTS=down CTS=down
R1(config-if)#no shut
R1(config-if)#do sh int s0/0/0
Serial0/0/0 is down, line protocol is down
Hardware is GT96K Serial
MTU 1500 bytes, BW 1544 Kbit/sec, DLY 20000 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation HDLC, loopback not set
Keepalive set (10 sec)
CRC checking enabled
Last input never, output 00:22:36, output hang never
Last clearing of "show interface" counters never
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
0 packets input, 0 bytes, 0 no buffer
Received 0 broadcasts (0 IP multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
1 packets output, 24 bytes, 0 underruns
0 output errors, 0 collisions, 6 interface resets
0 unknown protocol drops
0 output buffer failures, 0 output buffers swapped out
1 carrier transitions
--More--
*Oct 8 01:26:04.455: %LINK-3-UPDOWN: Interface Serial0/0/0, changed state to down
R1(config-if)#do sh int s0/0/0
Serial0/0/0 is down, line protocol is down
Hardware is GT96K Serial
MTU 1500 bytes, BW 1544 Kbit/sec, DLY 20000 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation HDLC, loopback not set
Keepalive set (10 sec)
CRC checking enabled
Last input never, output 00:22:44, output hang never
Last clearing of "show interface" counters never
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
0 packets input, 0 bytes, 0 no buffer
Received 0 broadcasts (0 IP multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
1 packets output, 24 bytes, 0 underruns
0 output errors, 0 collisions, 6 interface resets
0 unknown protocol drops
0 output buffer failures, 0 output buffers swapped out
1 carrier transitions
R1(config-if)#
*Oct 8 01:28:24.755: %LINK-3-UPDOWN: Interface Serial0/0/0, changed state to up
*Oct 8 01:28:25.755: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to up
R1(config-if)#^Z
R1#
*Oct 8 01:29:23.783: %SYS-5-CONFIG_I: Configured from console by console
R1#sh int s0/0/0
Serial0/0/0 is up, line protocol is up
Hardware is GT96K Serial
MTU 1500 bytes, BW 1544 Kbit/sec, DLY 20000 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation HDLC, loopback not set
Keepalive set (10 sec)
CRC checking enabled
Last input 00:00:01, output 00:00:02, output hang never
Last clearing of "show interface" counters never
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
12 packets input, 1452 bytes, 0 no buffer
Received 12 broadcasts (0 IP multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
11 packets output, 846 bytes, 0 underruns
0 output errors, 0 collisions, 10 interface resets
0 unknown protocol drops
0 output buffer failures, 0 output buffers swapped out
2 carrier transitions
DCD=up DSR=up DTR=up RTS=up CTS=up
R1#sh controllers s0/0/0
Interface Serial0/0/0
Hardware is GT96K
DCE V.35, clock rate 64000
idb at 0x66C0F420, driver data structure at 0x66C16C3C
wic_info 0x66C17268
Physical Port 0, SCC Num 0
MPSC Registers:
MMCR_L=0x000304C0, MMCR_H=0x00000000, MPCR=0x00000000
CHR1=0x00FE007E, CHR2=0x00000000, CHR3=0x0000064A, CHR4=0x00000000
CHR5=0x00000000, CHR6=0x00000000, CHR7=0x00000000, CHR8=0x00000000
CHR9=0x00000000, CHR10=0x00003008
SDMA Registers:
SDC=0x00002201, SDCM=0x00000080, SGC=0x0000C000
CRDP=0x161D17F0, CTDP=0x161D1A10, FTDB=0x161D1A10
Main Routing Register=0x0003FFF8 BRG Conf Register=0x0005023F
Rx Clk Routing Register=0x76543218 Tx Clk Routing Register=0x76543210
GPP Registers:
Conf=0x430002 , Io=0x464050 , Data=0x7F4BBFAF, Level=0x80004
Conf0=0x430002 , Io0=0x464050 , Data0=0x7F6BBFAF, Level0=0x80004
0 input aborts on receiving flag sequence
0 throttles, 0 enables
0 overruns
0 transmitter underruns
R1#conf t
Enter configuration commands, one per line. End with CNTL/Z.
R1(config)#int s0/0/0
R1(config-if)#bandwi
R1(config-if)#bandwidth ?
<1-10000000> Bandwidth in kilobits
inherit Specify how bandwidth is inherited
qos-reference Reference bandwidth for QOS test
receive Specify receive-side bandwidth
R1(config-if)#bandwidth 64
R1(config-if)#^Z
R1#
*Oct 8 03:02:29.035: %SYS-5-CONFIG_I: Configured from console by console
R1#sh int s0/0/0
Serial0/0/0 is up, line protocol is up
Hardware is GT96K Serial
MTU 1500 bytes, BW 64 Kbit/sec, DLY 20000 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation HDLC, loopback not set
Keepalive set (10 sec)
CRC checking enabled
Last input 00:00:06, output 00:00:06, output hang never
Last clearing of "show interface" counters never
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
676 packets input, 47652 bytes, 0 no buffer
Received 676 broadcasts (0 IP multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
675 packets output, 47046 bytes, 0 underruns
0 output errors, 0 collisions, 10 interface resets
0 unknown protocol drops
0 output buffer failures, 0 output buffers swapped out
2 carrier transitions
DCD=up DSR=up DTR=up RTS=up CTS=up
R2#sh controllers s0/0/0
Interface Serial0/0/0
Hardware is GT96K
DTE V.35 clocks stopped.
idb at 0x66C23FA0, driver data structure at 0x66C2B7BC
wic_info 0x66C2BDE8
Physical Port 0, SCC Num 0
MPSC Registers:
MMCR_L=0x00030400, MMCR_H=0x00000000, MPCR=0x00000000
CHR1=0x00FE007E, CHR2=0x80000000, CHR3=0x0000064A, CHR4=0x00000000
CHR5=0x00000000, CHR6=0x00000000, CHR7=0x00000000, CHR8=0x00000000
CHR9=0x00000000, CHR10=0x00002003
SDMA Registers:
SDC=0x00002201, SDCM=0x00000000, SGC=0x0000C000
CRDP=0x15BD2C20, CTDP=0x15BD2E60, FTDB=0x15BD2E60
Main Routing Register=0x0003FFF8 BRG Conf Register=0x00480000
Rx Clk Routing Register=0x76543218 Tx Clk Routing Register=0x76543219
GPP Registers:
Conf=0x30002 , Io=0x64050 , Data=0x7F1FFFAF, Level=0x0
Conf0=0x30002 , Io0=0x64050 , Data0=0x7F1FFFAF, Level0=0x0
0 input aborts on receiving flag sequence
0 throttles, 0 enables
0 overruns
0 transmitter underruns
R2#conf t
Enter configuration commands, one per line. End with CNTL/Z.
R2(config)#int s0/0/0
R2(config-if)#do sh int s0/0/0
Serial0/0/0 is administratively down, line protocol is down
Hardware is GT96K Serial
MTU 1500 bytes, BW 1544 Kbit/sec, DLY 20000 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation HDLC, loopback not set
Keepalive set (10 sec)
CRC checking enabled
Last input 00:23:53, output never, output hang never
Last clearing of "show interface" counters never
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
1 packets input, 24 bytes, 0 no buffer
Received 1 broadcasts (0 IP multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
0 packets output, 0 bytes, 0 underruns
0 output errors, 0 collisions, 5 interface resets
0 unknown protocol drops
0 output buffer failures, 0 output buffers swapped out
1 carrier transitions
DCD=up DSR=up DTR=down RTS=down CTS=up
R2(config-if)#do sh controllers s0/0/0
Interface Serial0/0/0
Hardware is GT96K
DTE V.35 TX and RX clocks detected.
idb at 0x66C23FA0, driver data structure at 0x66C2B7BC
wic_info 0x66C2BDE8
Physical Port 0, SCC Num 0
MPSC Registers:
MMCR_L=0x00030400, MMCR_H=0x00000000, MPCR=0x00000000
CHR1=0x00FE007E, CHR2=0x80000000, CHR3=0x0000064A, CHR4=0x00000000
CHR5=0x00000000, CHR6=0x00000000, CHR7=0x00000000, CHR8=0x00000000
CHR9=0x00000000, CHR10=0x00002000
SDMA Registers:
SDC=0x00002201, SDCM=0x00000000, SGC=0x0000C000
CRDP=0x15BD2C20, CTDP=0x15BD2E60, FTDB=0x15BD2E60
Main Routing Register=0x0003FFF8 BRG Conf Register=0x00480000
Rx Clk Routing Register=0x76543218 Tx Clk Routing Register=0x76543219
GPP Registers:
Conf=0x30002 , Io=0x64050 , Data=0x7F07FFAB, Level=0x0
Conf0=0x30002 , Io0=0x64050 , Data0=0x7F67FFAB, Level0=0x0
0 input aborts on receiving flag sequence
0 throttles, 0 enables
0 overruns
0 transmitter underruns
R2(config-if)#no shut
R2(config-if)#
*Oct 8 01:31:34.947: %LINK-3-UPDOWN: Interface Serial0/0/0, changed state to up
*Oct 8 01:31:35.947: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to up
R2(config-if)#^Z
R2#
*Oct 8 01:32:37.283: %SYS-5-CONFIG_I: Configured from console by console
R2#sh int s0/0/0
Serial0/0/0 is up, line protocol is up
Hardware is GT96K Serial
MTU 1500 bytes, BW 1544 Kbit/sec, DLY 20000 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation HDLC, loopback not set
Keepalive set (10 sec)
CRC checking enabled
Last input 00:00:02, output 00:00:01, output hang never
Last clearing of "show interface" counters never
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
11 packets input, 846 bytes, 0 no buffer
Received 11 broadcasts (0 IP multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
12 packets output, 1452 bytes, 0 underruns
0 output errors, 0 collisions, 6 interface resets
0 unknown protocol drops
0 output buffer failures, 0 output buffers swapped out
1 carrier transitions
DCD=up DSR=up DTR=up RTS=up CTS=up
R2#sh controllers s0/0/0
Interface Serial0/0/0
Hardware is GT96K
DTE V.35 TX and RX clocks detected.
idb at 0x66C23FA0, driver data structure at 0x66C2B7BC
wic_info 0x66C2BDE8
Physical Port 0, SCC Num 0
MPSC Registers:
MMCR_L=0x000304C0, MMCR_H=0x00000000, MPCR=0x00000000
CHR1=0x00FE007E, CHR2=0x00000000, CHR3=0x0000064A, CHR4=0x00000000
CHR5=0x00000000, CHR6=0x00000000, CHR7=0x00000000, CHR8=0x00000000
CHR9=0x00000000, CHR10=0x00003008
SDMA Registers:
SDC=0x00002201, SDCM=0x00000080, SGC=0x0000C000
CRDP=0x15BD2CD0, CTDP=0x15BD2F30, FTDB=0x15BD2F30
Main Routing Register=0x0003FFF8 BRG Conf Register=0x00480000
Rx Clk Routing Register=0x76543218 Tx Clk Routing Register=0x76543219
GPP Registers:
Conf=0x30002 , Io=0x64050 , Data=0x7F1BBFAB, Level=0x180000
Conf0=0x30002 , Io0=0x64050 , Data0=0x7F7BBFAB, Level0=0x180000
0 input aborts on receiving flag sequence
0 throttles, 0 enables
0 overruns
0 transmitter underruns
R2#conf t
Enter configuration commands, one per line. End with CNTL/Z.
R2(config)#int s0/0/0
R2(config-if)#bandwi
R2(config-if)#bandwidth ?
<1-10000000> Bandwidth in kilobits
inherit Specify how bandwidth is inherited
qos-reference Reference bandwidth for QOS test
receive Specify receive-side bandwidth
R2(config-if)#bandwidth 64
R2(config-if)#^Z
R2#
*Oct 8 03:05:39.263: %SYS-5-CONFIG_I: Configured from console by console
R2#sh int s0/0/0
Serial0/0/0 is up, line protocol is up
Hardware is GT96K Serial
MTU 1500 bytes, BW 64 Kbit/sec, DLY 20000 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation HDLC, loopback not set
Keepalive set (10 sec)
CRC checking enabled
Last input 00:00:06, output 00:00:06, output hang never
Last clearing of "show interface" counters never
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
675 packets input, 47046 bytes, 0 no buffer
Received 675 broadcasts (0 IP multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
676 packets output, 47652 bytes, 0 underruns
0 output errors, 0 collisions, 6 interface resets
0 unknown protocol drops
0 output buffer failures, 0 output buffers swapped out
1 carrier transitions
DCD=up DSR=up DTR=up RTS=up CTS=up
R1#conf t Enter configuration commands, one per line. End with CNTL/Z. R1(config)#int s0/0/0 R1(config-if)#enca R1(config-if)#encapsulation ? bstun Block Serial tunneling (BSTUN) frame-relay Frame Relay networks hdlc Serial HDLC synchronous lapb LAPB (X.25 Level 2) ppp Point-to-Point protocol sdlc SDLC sdlc-primary SDLC (primary) sdlc-secondary SDLC (secondary) smds Switched Megabit Data Service (SMDS) stun Serial tunneling (STUN) x25 X.25 R1(config-if)#do sh run int s0/0/0 Building configuration... Current configuration : 89 bytes ! interface Serial0/0/0 no ip address shutdown no fair-queue clock rate 2000000 end R1(config-if)#enca R1(config-if)#encapsulation hdlc R1(config-if)#do sh run int s0/0/0 Building configuration... Current configuration : 89 bytes ! interface Serial0/0/0 no ip address shutdown no fair-queue clock rate 2000000 end R1(config-if)#no encapsulation hdlc R1(config-if)#do sh run all | i hdlc R1(config-if)#do sh run int s0/0/0 Building configuration... Current configuration : 89 bytes ! interface Serial0/0/0 no ip address shutdown no fair-queue clock rate 2000000 end R1(config-if)#enca R1(config-if)#encapsulation ppp R1(config-if)#do sh run int s0/0/0 Building configuration... Current configuration : 108 bytes ! interface Serial0/0/0 no ip address encapsulation ppp shutdown no fair-queue clock rate 2000000 end R1(config-if)#ppp authentication ? chap Challenge Handshake Authentication Protocol (CHAP) eap Extensible Authentication Protocol (EAP) ms-chap Microsoft Challenge Handshake Authentication Protocol (MS-CHAP) ms-chap-v2 Microsoft CHAP Version 2 (MS-CHAP-V2) pap Password Authentication Protocol (PAP) R1(config-if)#ppp authentication chap R1(config-if)#do sh run int s0/0/0 Building configuration... Current configuration : 133 bytes ! interface Serial0/0/0 no ip address encapsulation ppp shutdown no fair-queue ppp authentication chap clock rate 2000000 end R1(config-if)#ppp multilink ? endpoint Configure the local Endpoint Discriminator fragment Specify fragmentation parameters group Put interface in a multilink bundle mrru Configure multilink MRRU values multiclass Configure support for Multiclass Multilink queue Specify link queuing parameters <cr>
PPP
R1#conf t Enter configuration commands, one per line. End with CNTL/Z. R1(config)#username R2 password CISCO R1(config)#int s0/0/0 R1(config-if)#ip address 172.16.1.1 255.255.255.252 R1(config-if)#encapsulation pp R1(config-if)#ppp authentication cha R1(config-if)#ppp authentication chap R1(config-if)#no shut R1(config-if)# *Oct 11 22:07:14.795: %LINK-3-UPDOWN: Interface Serial0/0/0, changed state to up R1(config-if)# *Oct 11 22:07:14.911: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to up R1(config-if)#
R2#conf t Enter configuration commands, one per line. End with CNTL/Z. R2(config)#username R1 password CISCO R2(config)#interface Serial 0/0/0 R2(config-if)#ip addr 172.16.1.2 255.255.255.252 R2(config-if)#encapsulation ppp R2(config-if)#ppp authentication chap R2(config-if)#no shut R2(config-if)# *Oct 11 22:10:29.835: %LINK-3-UPDOWN: Interface Serial0/0/0, changed state to up R2(config-if)# *Oct 11 22:10:29.951: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to up
R1(config-if)#do sh int s0/0/0
Serial0/0/0 is up, line protocol is up
Hardware is GT96K Serial
Internet address is 172.16.1.1/30
MTU 1500 bytes, BW 1544 Kbit/sec, DLY 20000 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation PPP, LCP Open, multilink Closed
Open: IPCP, CDPCP, loopback not set
Keepalive set (10 sec)
CRC checking enabled
Last input 00:00:06, output 00:00:06, output hang never
Last clearing of "show interface" counters 00:05:37
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
58 packets input, 2161 bytes, 0 no buffer
Received 0 broadcasts (0 IP multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
60 packets output, 2825 bytes, 0 underruns
0 output errors, 0 collisions, 1 interface resets
0 unknown protocol drops
0 output buffer failures, 0 output buffers swapped out
1 carrier transitions
DCD=up DSR=up DTR=up RTS=up CTS=up
R1(config-if)#do sh run int s0/0/0
Building configuration...
Current configuration : 162 bytes
!
interface Serial0/0/0
ip address 172.16.1.1 255.255.255.252
encapsulation ppp
no fair-queue
ppp authentication chap
ppp multilink
clock rate 2000000
end
R1(config-if)#do sh controllers s0/0/0
Interface Serial0/0/0
Hardware is GT96K
DCE V.35, clock rate 2000000
idb at 0x66C1E3E0, driver data structure at 0x66C25BFC
wic_info 0x66C26228
Physical Port 0, SCC Num 0
MPSC Registers:
MMCR_L=0x000304C0, MMCR_H=0x00000000, MPCR=0x00000000
CHR1=0x00FE007E, CHR2=0x00000000, CHR3=0x0000064A, CHR4=0x00000000
CHR5=0x00000000, CHR6=0x00000000, CHR7=0x00000000, CHR8=0x00000000
CHR9=0x00000000, CHR10=0x00003008
SDMA Registers:
SDC=0x00002201, SDCM=0x00000080, SGC=0x0000C000
CRDP=0x161D7A40, CTDP=0x161D82A0, FTDB=0x161D82A0
Main Routing Register=0x0003FFF8 BRG Conf Register=0x00490013
Rx Clk Routing Register=0x76543218 Tx Clk Routing Register=0x76543210
GPP Registers:
Conf=0x430002 , Io=0x464050 , Data=0x7F4BBFAF, Level=0x80004
Conf0=0x430002 , Io0=0x464050 , Data0=0x7F4BBFAF, Level0=0x80004
0 input aborts on receiving flag sequence
0 throttles, 0 enables
0 overruns
R1(config-if)#do sh run | i username
username R2 password 0 CISCO
R2(config-if)#do sh int s0/0/0
Serial0/0/0 is up, line protocol is up
Hardware is GT96K Serial
Internet address is 172.16.1.2/30
MTU 1500 bytes, BW 1544 Kbit/sec, DLY 20000 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation PPP, LCP Open
Open: IPCP, CDPCP, loopback not set
Keepalive set (10 sec)
CRC checking enabled
Last input 00:00:06, output 00:00:06, output hang never
Last clearing of "show interface" counters 00:04:06
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
60 packets input, 2825 bytes, 0 no buffer
Received 0 broadcasts (0 IP multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
58 packets output, 2161 bytes, 0 underruns
0 output errors, 0 collisions, 1 interface resets
0 unknown protocol drops
0 output buffer failures, 0 output buffers swapped out
1 carrier transitions
DCD=up DSR=up DTR=up RTS=up CTS=up
R2(config-if)#do sh run int s0/0/0
Building configuration...
Current configuration : 127 bytes
!
interface Serial0/0/0
ip address 172.16.1.2 255.255.255.252
encapsulation ppp
no fair-queue
ppp authentication chap
end
R2(config-if)#do sh controllers s0/0/0
Interface Serial0/0/0
Hardware is GT96K
DTE V.35 TX and RX clocks detected.
idb at 0x66C345A0, driver data structure at 0x66C3BDBC
wic_info 0x66C3C3E8
Physical Port 0, SCC Num 0
MPSC Registers:
MMCR_L=0x000304C0, MMCR_H=0x00000000, MPCR=0x00000000
CHR1=0x00FE007E, CHR2=0x00000000, CHR3=0x0000064A, CHR4=0x00000000
CHR5=0x00000000, CHR6=0x00000000, CHR7=0x00000000, CHR8=0x00000000
CHR9=0x00000000, CHR10=0x00003008
SDMA Registers:
SDC=0x00002201, SDCM=0x00000080, SGC=0x0000C000
CRDP=0x15BD2CE0, CTDP=0x15BD3500, FTDB=0x15BD3500
Main Routing Register=0x0003FFF8 BRG Conf Register=0x00480000
Rx Clk Routing Register=0x76543218 Tx Clk Routing Register=0x76543219
GPP Registers:
Conf=0x30002 , Io=0x64050 , Data=0x7F7BBFAB, Level=0x180000
Conf0=0x30002 , Io0=0x64050 , Data0=0x7F1BBFAB, Level0=0x180000
0 input aborts on receiving flag sequence
0 throttles, 0 enables
0 overruns
0 transmitter underruns
R2(config-if)#do sh run | i username
username R1 password 0 CISCO
R1(config-if)#do ping 172.16.1.2 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 172.16.1.2, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 1/2/4 ms
Let's say wrong password.
R1(config)#username R2 password CCIE
R1(config)#do sh int s0/0/0
Serial0/0/0 is up, line protocol is up
Hardware is GT96K Serial
Internet address is 172.16.1.1/30
MTU 1500 bytes, BW 1544 Kbit/sec, DLY 20000 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation PPP, LCP Open, multilink Closed
Open: IPCP, CDPCP, loopback not set
Keepalive set (10 sec)
CRC checking enabled
Last input 00:00:00, output 00:00:00, output hang never
Last clearing of "show interface" counters 00:12:22
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
152 packets input, 6261 bytes, 0 no buffer
Received 0 broadcasts (0 IP multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
154 packets output, 6925 bytes, 0 underruns
0 output errors, 0 collisions, 1 interface resets
0 unknown protocol drops
R1(config)#ping 172.16.1.2
^
% Invalid input detected at '^' marker.
R1(config)#do ping 172.16.1.2
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 172.16.1.2, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 1/2/4 ms
R1(config)#int s0/0/0 R1(config-if)#shut R1(config-if)# *Oct 11 22:18:32.223: %LINK-5-CHANGED: Interface Serial0/0/0, changed state to administratively down *Oct 11 22:18:32.227: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to down R1(config-if)#no shut R1(config-if)#no shut *Oct 11 22:18:37.247: %LINK-3-UPDOWN: Interface Serial0/0/0, changed state to up R1(config-if)#do ping 172.16.1.2 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 172.16.1.2, timeout is 2 seconds: ..... Success rate is 0 percent (0/5) R1(config-if)# *Oct 11 22:19:02.579: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to up *Oct 11 22:19:02.587: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to down R1(config-if)# *Oct 11 22:19:16.755: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to up *Oct 11 22:19:16.763: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to down R1(config-if)# *Oct 11 22:19:24.851: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to up *Oct 11 22:19:24.859: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to down R1(config-if)#no shut *Oct 11 22:19:32.947: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to up *Oct 11 22:19:32.955: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to down R1(config-if)#do ping 172.16.1.2 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 172.16.1.2, timeout is 2 seconds: ..... Success rate is 0 percent (0/5) R1(config-if)# *Oct 11 22:19:47.123: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to up *Oct 11 22:19:47.131: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to down R1(config-if)#
R1(config-if)#do sh int s0/0/0
Serial0/0/0 is up, line protocol is down
Hardware is GT96K Serial
Internet address is 172.16.1.1/30
MTU 1500 bytes, BW 1544 Kbit/sec, DLY 20000 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation PPP, LCP REQsent, multilink Closed, loopback not set
Keepalive set (10 sec)
CRC checking enabled
Last input 00:00:02, output 00:00:00, output hang never
Last clearing of "show interface" counters 00:15:02
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
398 packets input, 11926 bytes, 0 no buffer
Received 0 broadcasts (0 IP multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
412 packets output, 13404 bytes, 0 underruns
0 output errors, 0 collisions, 33 interface resets
0 unknown protocol drops
0 output buffer failures, 0 output buffers swapped out
67 carrier transitions
DCD=up DSR=up DTR=up RTS=up CTS=up
Line protocol down
e R1#debu R1#debug pp *Oct 11 22:21:44.787: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to up *Oct 11 22:21:44.795: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to down R1#debug ppp auth R1#debug ppp authe R1#debug ppp authentication PPP authentication debugging is on R1# *Oct 11 22:21:56.959: Se0/0/0 PPP: Using default call direction *Oct 11 22:21:56.959: Se0/0/0 PPP: Treating connection as a dedicated line *Oct 11 22:21:56.959: Se0/0/0 PPP: Session handle[B900003E] Session id[62] *Oct 11 22:21:56.983: Se0/0/0 CHAP: O CHALLENGE id 1 len 23 from "R1" *Oct 11 22:21:56.991: Se0/0/0 CHAP: I CHALLENGE id 1 len 23 from "R2" *Oct 11 22:21:56.991: Se0/0/0 PPP: Sent CHAP SENDAUTH Request *Oct 11 22:21:56.991: Se0/0/0 CHAP: I RESPONSE id 1 len 23 from "R2" *Oct 11 22:21:56.995: Se0/0/0 PPP: Received SENDAUTH Response PASS *Oct 11 22:21:56.995: Se0/0/0 CHAP: Using hostname from configured hostname R1# *Oct 11 22:21:56.995: Se0/0/0 CHAP: Using password from AAA *Oct 11 22:21:56.995: Se0/0/0 CHAP: O RESPONSE id 1 len 23 from "R1" *Oct 11 22:21:56.995: Se0/0/0 PPP: Sent CHAP LOGIN Request *Oct 11 22:21:56.999: Se0/0/0 PPP: Received LOGIN Response FAIL *Oct 11 22:21:56.999: Se0/0/0 CHAP: O FAILURE id 1 len 25 msg is "Authentication failed" R1# *Oct 11 22:21:59.003: Se0/0/0 PPP: Using default call direction *Oct 11 22:21:59.003: Se0/0/0 PPP: Treating connection as a dedicated line *Oct 11 22:21:59.003: Se0/0/0 PPP: Session handle[CD00003F] Session id[63] R1# *Oct 11 22:22:01.047: Se0/0/0 CHAP: O CHALLENGE id 1 len 23 from "R1" *Oct 11 22:22:01.047: Se0/0/0 CHAP: I CHALLENGE id 1 len 23 from "R2" *Oct 11 22:22:01.047: Se0/0/0 PPP: Sent CHAP SENDAUTH Request *Oct 11 22:22:01.047: Se0/0/0 PPP: Received SENDAUTH Response PASS *Oct 11 22:22:01.047: Se0/0/0 CHAP: Using hostname from configured hostname *Oct 11 22:22:01.047: Se0/0/0 CHAP: Using password from AAA *Oct 11 22:22:01.047: Se0/0/0 CHAP: O RESPONSE id 1 len 23 from "R1" *Oct 11 22:22:01.051: Se0/0/0 CHAP: I RESPONSE id 1 len 23 from "R2" *Oct 11 22:22:01.051: Se0/0/0 PPP: Sent CHAP LOGIN Request *Oct 11 22:22:01.051: Se0/0/0 PPP: Received LOGIN Response FAIL R1# *Oct 11 22:22:01.055: Se0/0/0 CHAP: O FAILURE id 1 len 25 msg is "Authentication failed" R1# *Oct 11 22:22:03.059: Se0/0/0 PPP: Using default call direction *Oct 11 22:22:03.059: Se0/0/0 PPP: Treating connection as a dedicated line *Oct 11 22:22:03.059: Se0/0/0 PPP: Session handle[C3000040] Session id[64] *Oct 11 22:22:03.095: Se0/0/0 CHAP: O CHALLENGE id 1 len 23 from "R1" *Oct 11 22:22:03.095: Se0/0/0 CHAP: I CHALLENGE id 1 len 23 from "R2" *Oct 11 22:22:03.095: Se0/0/0 PPP: Sent CHAP SENDAUTH Request *Oct 11 22:22:03.095: Se0/0/0 PPP: Received SENDAUTH Response PASS *Oct 11 22:22:03.095: Se0/0/0 CHAP: Using hostname from configured hostname *Oct 11 22:22:03.095: Se0/0/0 CHAP: Using password from AAA R1# *Oct 11 22:22:03.095: Se0/0/0 CHAP: O RESPONSE id 1 len 23 from "R1" *Oct 11 22:22:03.099: Se0/0/0 CHAP: I RESPONSE id 1 len 23 from "R2" *Oct 11 22:22:03.099: Se0/0/0 PPP: Sent CHAP LOGIN Request *Oct 11 22:22:03.099: Se0/0/0 PPP: Received LOGIN Response FAIL *Oct 11 22:22:03.103: Se0/0/0 CHAP: O FAILURE id 1 len 25 msg is "Authentication failed"
R2(config-if)#^Z R2#debug ppp authentication PPP authentication debugging is on R2# *Oct 11 22:25:13.379: %SYS-5-CONFIG_I: Configured from console by console *Oct 11 22:25:13.999: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to up *Oct 11 22:25:14.055: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to down R2# *Oct 11 22:25:16.055: Se0/0/0 PPP: Using default call direction *Oct 11 22:25:16.055: Se0/0/0 PPP: Treating connection as a dedicated line *Oct 11 22:25:16.055: Se0/0/0 PPP: Session handle[AB00003F] Session id[63] *Oct 11 22:25:16.067: Se0/0/0 CHAP: O CHALLENGE id 1 len 23 from "R2" *Oct 11 22:25:16.091: Se0/0/0 CHAP: I CHALLENGE id 1 len 23 from "R1" *Oct 11 22:25:16.091: Se0/0/0 PPP: Sent CHAP SENDAUTH Request *Oct 11 22:25:16.091: Se0/0/0 PPP: Received SENDAUTH Response PASS *Oct 11 22:25:16.091: Se0/0/0 CHAP: Using hostname from configured hostname *Oct 11 22:25:16.091: Se0/0/0 CHAP: Using password from AAA R2# *Oct 11 22:25:16.091: Se0/0/0 CHAP: O RESPONSE id 1 len 23 from "R2" *Oct 11 22:25:16.091: Se0/0/0 CHAP: I RESPONSE id 1 len 23 from "R1" *Oct 11 22:25:16.095: Se0/0/0 PPP: Sent CHAP LOGIN Request *Oct 11 22:25:16.095: Se0/0/0 PPP: Received LOGIN Response FAIL *Oct 11 22:25:16.095: Se0/0/0 CHAP: O FAILURE id 1 len 25 msg is "Authentication failed" R2# *Oct 11 22:25:18.099: Se0/0/0 PPP: Using default call direction *Oct 11 22:25:18.099: Se0/0/0 PPP: Treating connection as a dedicated line *Oct 11 22:25:18.099: Se0/0/0 PPP: Session handle[11000040] Session id[64] *Oct 11 22:25:18.115: Se0/0/0 CHAP: O CHALLENGE id 1 len 23 from "R2" *Oct 11 22:25:18.139: Se0/0/0 CHAP: I CHALLENGE id 1 len 23 from "R1" *Oct 11 22:25:18.139: Se0/0/0 PPP: Sent CHAP SENDAUTH Request *Oct 11 22:25:18.139: Se0/0/0 PPP: Received SENDAUTH Response PASS *Oct 11 22:25:18.139: Se0/0/0 CHAP: Using hostname from configured hostname *Oct 11 22:25:18.139: Se0/0/0 CHAP: Using password from AAA R2# *Oct 11 22:25:18.139: Se0/0/0 CHAP: O RESPONSE id 1 len 23 from "R2" *Oct 11 22:25:18.139: Se0/0/0 CHAP: I RESPONSE id 1 len 23 from "R1" *Oct 11 22:25:18.143: Se0/0/0 PPP: Sent CHAP LOGIN Request *Oct 11 22:25:18.143: Se0/0/0 PPP: Received LOGIN Response FAIL *Oct 11 22:25:18.143: Se0/0/0 CHAP: O FAILURE id 1 len 25 msg is "Authentication failed" R2# *Oct 11 22:25:20.147: Se0/0/0 PPP: Using default call direction *Oct 11 22:25:20.147: Se0/0/0 PPP: Treating connection as a dedicated line *Oct 11 22:25:20.147: Se0/0/0 PPP: Session handle[A9000041] Session id[65] *Oct 11 22:25:20.163: Se0/0/0 CHAP: O CHALLENGE id 1 len 23 from "R2" *Oct 11 22:25:20.187: Se0/0/0 CHAP: I CHALLENGE id 1 len 23 from "R1" *Oct 11 22:25:20.187: Se0/0/0 PPP: Sent CHAP SENDAUTH Request *Oct 11 22:25:20.187: Se0/0/0 PPP: Received SENDAUTH Response PASS *Oct 11 22:25:20.187: Se0/0/0 CHAP: Using hostname from configured hostname *Oct 11 22:25:20.187: Se0/0/0 CHAP: Using password from AAA R2# *Oct 11 22:25:20.187: Se0/0/0 CHAP: O RESPONSE id 1 len 23 from "R2" *Oct 11 22:25:20.187: Se0/0/0 CHAP: I RESPONSE id 1 len 23 from "R1" *Oct 11 22:25:20.191: Se0/0/0 PPP: Sent CHAP LOGIN Request *Oct 11 22:25:20.191: Se0/0/0 PPP: Received LOGIN Response FAIL *Oct 11 22:25:20.191: Se0/0/0 CHAP: O FAILURE id 1 len 25 msg is "Authentication failed" R2# *Oct 11 22:25:22.195: Se0/0/0 PPP: Using default call direction *Oct 11 22:25:22.195: Se0/0/0 PPP: Treating connection as a dedicated line *Oct 11 22:25:22.195: Se0/0/0 PPP: Session handle[7E000042] Session id[66] *Oct 11 22:25:22.211: Se0/0/0 CHAP: O CHALLENGE id 1 len 23 from "R2" *Oct 11 22:25:22.235: Se0/0/0 CHAP: I CHALLENGE id 1 len 23 from "R1" *Oct 11 22:25:22.235: Se0/0/0 PPP: Sent CHAP SENDAUTH Request *Oct 11 22:25:22.235: Se0/0/0 PPP: Received SENDAUTH Response PASS *Oct 11 22:25:22.235: Se0/0/0 CHAP: Using hostname from configured hostname *Oct 11 22:25:22.235: Se0/0/0 CHAP: Using password from AAA R2# *Oct 11 22:25:22.235: Se0/0/0 CHAP: O RESPONSE id 1 len 23 from "R2" *Oct 11 22:25:22.235: Se0/0/0 CHAP: I RESPONSE id 1 len 23 from "R1" *Oct 11 22:25:22.239: Se0/0/0 PPP: Sent CHAP LOGIN Request *Oct 11 22:25:22.239: Se0/0/0 PPP: Received LOGIN Response FAIL *Oct 11 22:25:22.239: Se0/0/0 CHAP: O FAILURE id 1 len 25 msg is "Authentication failed" R2# *Oct 11 22:25:24.243: Se0/0/0 PPP: Using default call direction *Oct 11 22:25:24.243: Se0/0/0 PPP: Treating connection as a dedicated line *Oct 11 22:25:24.243: Se0/0/0 PPP: Session handle[97000043] Session id[67] *Oct 11 22:25:24.259: Se0/0/0 CHAP: O CHALLENGE id 1 len 23 from "R2" *Oct 11 22:25:24.283: Se0/0/0 CHAP: I CHALLENGE id 1 len 23 from "R1" *Oct 11 22:25:24.283: Se0/0/0 PPP: Sent CHAP SENDAUTH Request *Oct 11 22:25:24.283: Se0/0/0 PPP: Received SENDAUTH Response PASS *Oct 11 22:25:24.283: Se0/0/0 CHAP: Using hostname from configured hostname *Oct 11 22:25:24.283: Se0/0/0 CHAP: Using password from AAA R2# *Oct 11 22:25:24.283: Se0/0/0 CHAP: O RESPONSE id 1 len 23 from "R2" *Oct 11 22:25:24.283: Se0/0/0 CHAP: I RESPONSE id 1 len 23 from "R1" *Oct 11 22:25:24.287: Se0/0/0 PPP: Sent CHAP LOGIN Request *Oct 11 22:25:24.287: Se0/0/0 PPP: Received LOGIN Response FAIL *Oct 11 22:25:24.287: Se0/0/0 CHAP: O FAILURE id 1 len 25 msg is "Authentication failed" R2# *Oct 11 22:25:26.291: Se0/0/0 PPP: Using default call direction *Oct 11 22:25:26.291: Se0/0/0 PPP: Treating connection as a dedicated line *Oct 11 22:25:26.291: Se0/0/0 PPP: Session handle[3D000044] Session id[68] *Oct 11 22:25:26.307: Se0/0/0 CHAP: O CHALLENGE id 1 len 23 from "R2" *Oct 11 22:25:26.331: Se0/0/0 CHAP: I CHALLENGE id 1 len 23 from "R1" *Oct 11 22:25:26.331: Se0/0/0 PPP: Sent CHAP SENDAUTH Request *Oct 11 22:25:26.331: Se0/0/0 PPP: Received SENDAUTH Response PASS *Oct 11 22:25:26.331: Se0/0/0 CHAP: Using hostname from configured hostname *Oct 11 22:25:26.331: Se0/0/0 CHAP: Using password from AAA R2# *Oct 11 22:25:26.331: Se0/0/0 CHAP: O RESPONSE id 1 len 23 from "R2" *Oct 11 22:25:26.331: Se0/0/0 CHAP: I RESPONSE id 1 len 23 from "R1" *Oct 11 22:25:26.335: Se0/0/0 PPP: Sent CHAP LOGIN Request *Oct 11 22:25:26.335: Se0/0/0 PPP: Received LOGIN Response FAIL *Oct 11 22:25:26.335: Se0/0/0 CHAP: O FAILURE id 1 len 25 msg is "Authentication failed" R2# *Oct 11 22:25:28.339: Se0/0/0 PPP: Using default call direction *Oct 11 22:25:28.339: Se0/0/0 PPP: Treating connection as a dedicated line *Oct 11 22:25:28.339: Se0/0/0 PPP: Session handle[D6000045] Session id[69] *Oct 11 22:25:28.355: Se0/0/0 CHAP: O CHALLENGE id 1 len 23 from "R2" *Oct 11 22:25:28.379: Se0/0/0 CHAP: I CHALLENGE id 1 len 23 from "R1" *Oct 11 22:25:28.379: Se0/0/0 PPP: Sent CHAP SENDAUTH Request *Oct 11 22:25:28.379: Se0/0/0 PPP: Received SENDAUTH Response PASS *Oct 11 22:25:28.379: Se0/0/0 CHAP: Using hostname from configured hostname *Oct 11 22:25:28.379: Se0/0/0 CHAP: Using password from AAA R2#
R1#sh run | i username username R2 password 0 CCIE
Let's fix wrong password.
R1(config)#username R2 password C
*Oct 11 22:26:35.359: Se0/0/0 PPP: Using default call direction
*Oct 11 22:26:35.359: Se0/0/0 PPP: Treating connection as a dedicated line
*Oct 11 22:26:35.359: Se0/0/0 PPP: Session handle[1E0000A4] Session id[164]
*Oct 11 22:26:35.383: Se0/0/0 CHAP: O CHALLENGE id 1 len 23 from "R1"
*Oct 11 22:26:35.391: Se0/0/0 CHAP: I CHALLENGE id 1 len 23 from "R2"
*Oct 11 22:26:35.391: Se0/0/0 PPP: Sent CHAP SENDAUTH Request
*Oct 11 22:26:35.391: Se0/0/0 PPP: Received SENDAUTH Response PASS
*Oct 11 22:26:35.391: Se0/0/0 CHAP: Using hostname from configured hostname
*Oct 11 22:26:35.391: Se0/0/0 CHAP: Using password from AAA
R1(config)#username R2 password
*Oct 11 22:26:35.391: Se0/0/0 CHAP: O RESPONSE id 1 len 23 from "R1"
*Oct 11 22:26:35.395: Se0/0/0 CHAP: I RESPONSE id 1 len 23 from "R2"
*Oct 11 22:26:35.395: Se0/0/0 PPP: Sent CHAP LOGIN Request
*Oct 11 22:26:35.395: Se0/0/0 PPP: Received LOGIN Response FAIL
*Oct 11 22:26:35.395: Se0/0/0 CHAP: O FAILURE id 1 len 25 msg is "Authentication failed"
R1(config)#username R2 password
*Oct 11 22:26:37.403: Se0/0/0 PPP: Using default call direction
*Oct 11 22:26:37.407: Se0/0/0 PPP: Treating connection as a dedicated line
*Oct 11 22:26:37.407: Se0/0/0 PPP: Session handle[570000A5] Session id[165]
*Oct 11 22:26:37.431: Se0/0/0 CHAP: O CHALLENGE id 1 len 23 from "R1"
*Oct 11 22:26:37.439: Se0/0/0 CHAP: I CHALLENGE id 1 len 23 from "R2"
*Oct 11 22:26:37.439: Se0/0/0 PPP: Sent CHAP SENDAUTH Request
*Oct 11 22:26:37.439: Se0/0/0 PPP: Received SENDAUTH Response PASS
*Oct 11 22:26:37.439: Se0/0/0 CHAP: Using hostname from configured hostname
*Oct 11 22:26:37.439: Se0/0/0 CHAP: Using password from AAA
R1(config)#username R2 password CISC
*Oct 11 22:26:37.439: Se0/0/0 CHAP: O RESPONSE id 1 len 23 from "R1"
*Oct 11 22:26:37.439: Se0/0/0 CHAP: I RESPONSE id 1 len 23 from "R2"
*Oct 11 22:26:37.443: Se0/0/0 PPP: Sent CHAP LOGIN Request
*Oct 11 22:26:37.443: Se0/0/0 PPP: Received LOGIN Response FAIL
*Oct 11 22:26:37.443: Se0/0/0 CHAP: O FAILURE id 1 len 25 msg is "Authentication failed"
R1(config)#username R2 password CISCO
R1(config)#
*Oct 11 22:26:39.455: Se0/0/0 PPP: Using default call direction
*Oct 11 22:26:39.455: Se0/0/0 PPP: Treating connection as a dedicated line
*Oct 11 22:26:39.455: Se0/0/0 PPP: Session handle[5B0000A6] Session id[166]
*Oct 11 22:26:39.479: Se0/0/0 CHAP: O CHALLENGE id 1 len 23 from "R1"
*Oct 11 22:26:39.487: Se0/0/0 CHAP: I CHALLENGE id 1 len 23 from "R2"
*Oct 11 22:26:39.487: Se0/0/0 PPP: Sent CHAP SENDAUTH Request
*Oct 11 22:26:39.487: Se0/0/0 PPP: Received SENDAUTH Response PASS
*Oct 11 22:26:39.487: Se0/0/0 CHAP: Using hostname from configured hostname
*Oct 11 22:26:39.487: Se0/0/0 CHAP: Using password from AAA
*Oct 11 22:26:39.487: Se0/0/0 CHAP: O RESPONSE id 1 len 23 from "R1"
*Oct 11 22:26:39.491: Se0/0/0 CHAP: I RESPONSE id 1 len 23 from "R2"
*Oct 11 22:26:39.491: Se0/0/0 PPP: Sent CHAP LOGIN Request
*Oct 11 22:26:39.491: Se0/0/0 PPP: Received LOGIN Response PASS
*Oct 11 22:26:39.499: Se0/0/0 CHAP: O SUCCESS id 1 len 4
*Oct 11 22:26:39.499: Se0/0/0 CHAP: I SUCCESS id 1 len 4
R1(config)#
*Oct 11 22:26:39.503: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to up
R1(config)#^Z
R1#ping
*Oct 11 22:28:01.055: %SYS-5-CONFIG_I: Configured from console by console
R1#ping 172.16.1.2
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 172.16.1.2, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 1/2/4 ms
R1#sh int s0/0/0
Serial0/0/0 is up, line protocol is up
Hardware is GT96K Serial
Internet address is 172.16.1.1/30
MTU 1500 bytes, BW 1544 Kbit/sec, DLY 20000 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation PPP, LCP Open, multilink Closed
Open: IPCP, CDPCP, loopback not set
Keepalive set (10 sec)
CRC checking enabled
Last input 00:00:03, output 00:00:03, output hang never
Last clearing of "show interface" counters 00:22:48
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
1439 packets input, 33801 bytes, 0 no buffer
Received 0 broadcasts (0 IP multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
1461 packets output, 37288 bytes, 0 underruns
0 output errors, 0 collisions, 165 interface resets
0 unknown protocol drops
0 output buffer failures, 0 output buffers swapped out
316 carrier transitions
DCD=up DSR=up DTR=up RTS=up CTS=up
R1#u all
All possible debugging has been turned off
R1#
R2(config)#
*Oct 11 22:29:48.387: Se0/0/0 CHAP: O RESPONSE id 1 len 23 from "R2"
*Oct 11 22:29:48.391: Se0/0/0 CHAP: I RESPONSE id 1 len 23 from "R1"
*Oct 11 22:29:48.391: Se0/0/0 PPP: Sent CHAP LOGIN Request
*Oct 11 22:29:48.391: Se0/0/0 PPP: Received LOGIN Response FAIL
*Oct 11 22:29:48.395: Se0/0/0 CHAP: O FAILURE id 1 len 25 msg is "Authentication failed"
R2(config)#
*Oct 11 22:29:50.399: Se0/0/0 PPP: Using default call direction
*Oct 11 22:29:50.399: Se0/0/0 PPP: Treating connection as a dedicated line
*Oct 11 22:29:50.399: Se0/0/0 PPP: Session handle[BF0000A4] Session id[164]
*Oct 11 22:29:50.435: Se0/0/0 CHAP: O CHALLENGE id 1 len 23 from "R2"
*Oct 11 22:29:50.435: Se0/0/0 CHAP: I CHALLENGE id 1 len 23 from "R1"
*Oct 11 22:29:50.435: Se0/0/0 PPP: Sent CHAP SENDAUTH Request
*Oct 11 22:29:50.435: Se0/0/0 PPP: Received SENDAUTH Response PASS
*Oct 11 22:29:50.435: Se0/0/0 CHAP: Using hostname from configured hostname
*Oct 11 22:29:50.435: Se0/0/0 CHAP: Using password from AAA
R2(config)#
*Oct 11 22:29:50.435: Se0/0/0 CHAP: O RESPONSE id 1 len 23 from "R2"
*Oct 11 22:29:50.439: Se0/0/0 CHAP: I RESPONSE id 1 len 23 from "R1"
*Oct 11 22:29:50.439: Se0/0/0 PPP: Sent CHAP LOGIN Request
*Oct 11 22:29:50.439: Se0/0/0 PPP: Received LOGIN Response FAIL
*Oct 11 22:29:50.443: Se0/0/0 CHAP: O FAILURE id 1 len 25 msg is "Authentication failed"
R2(config)#
*Oct 11 22:29:52.455: Se0/0/0 PPP: Using default call direction
*Oct 11 22:29:52.455: Se0/0/0 PPP: Treating connection as a dedicated line
*Oct 11 22:29:52.455: Se0/0/0 PPP: Session handle[3B0000A5] Session id[165]
*Oct 11 22:29:52.483: Se0/0/0 CHAP: O CHALLENGE id 1 len 23 from "R2"
*Oct 11 22:29:52.483: Se0/0/0 CHAP: I CHALLENGE id 1 len 23 from "R1"
*Oct 11 22:29:52.483: Se0/0/0 PPP: Sent CHAP SENDAUTH Request
*Oct 11 22:29:52.483: Se0/0/0 PPP: Received SENDAUTH Response PASS
*Oct 11 22:29:52.483: Se0/0/0 CHAP: Using hostname from configured hostname
*Oct 11 22:29:52.483: Se0/0/0 CHAP: Using password from AAA
R2(config)#
*Oct 11 22:29:52.483: Se0/0/0 CHAP: O RESPONSE id 1 len 23 from "R2"
*Oct 11 22:29:52.487: Se0/0/0 CHAP: I RESPONSE id 1 len 23 from "R1"
*Oct 11 22:29:52.487: Se0/0/0 PPP: Sent CHAP LOGIN Request
*Oct 11 22:29:52.487: Se0/0/0 PPP: Received LOGIN Response FAIL
*Oct 11 22:29:52.491: Se0/0/0 CHAP: O FAILURE id 1 len 25 msg is "Authentication failed"
R2(config)#
*Oct 11 22:29:54.495: Se0/0/0 PPP: Using default call direction
*Oct 11 22:29:54.495: Se0/0/0 PPP: Treating connection as a dedicated line
*Oct 11 22:29:54.495: Se0/0/0 PPP: Session handle[260000A6] Session id[166]
*Oct 11 22:29:54.531: Se0/0/0 CHAP: O CHALLENGE id 1 len 23 from "R2"
*Oct 11 22:29:54.531: Se0/0/0 CHAP: I CHALLENGE id 1 len 23 from "R1"
*Oct 11 22:29:54.531: Se0/0/0 PPP: Sent CHAP SENDAUTH Request
*Oct 11 22:29:54.531: Se0/0/0 PPP: Received SENDAUTH Response PASS
*Oct 11 22:29:54.531: Se0/0/0 CHAP: Using hostname from configured hostname
*Oct 11 22:29:54.531: Se0/0/0 CHAP: Using password from AAA
*Oct 11 22:29:54.531: Se0/0/0 CHAP: O RESPONSE id 1 len 23 from "R2"
*Oct 11 22:29:54.535: Se0/0/0 CHAP: I RESPONSE id 1 len 23 from "R1"
*Oct 11 22:29:54.535: Se0/0/0 PPP: Sent CHAP LOGIN Request
*Oct 11 22:29:54.535: Se0/0/0 PPP: Received LOGIN Response PASS
*Oct 11 22:29:54.543: Se0/0/0 CHAP: O SUCCESS id 1 len 4
*Oct 11 22:29:54.543: Se0/0/0 CHAP: I SUCCESS id 1 len 4
R2(config)#
*Oct 11 22:29:54.547: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to up
R2(config)#^Z
R2#ping 172.16.1.
*Oct 11 22:31:37.775: %SYS-5-CONFIG_I: Configured from console by console
R2#ping 172.16.1.1
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 172.16.1.1, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 1/2/4 ms
R2#sh int s0/0/0
Serial0/0/0 is up, line protocol is up
Hardware is GT96K Serial
Internet address is 172.16.1.2/30
MTU 1500 bytes, BW 1544 Kbit/sec, DLY 20000 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation PPP, LCP Open
Open: IPCP, CDPCP, loopback not set
Keepalive set (10 sec)
CRC checking enabled
Last input 00:00:02, output 00:00:02, output hang never
Last clearing of "show interface" counters 00:21:37
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 1000 bits/sec, 1 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
1471 packets input, 38196 bytes, 0 no buffer
Received 0 broadcasts (0 IP multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
1451 packets output, 34747 bytes, 0 underruns
0 output errors, 0 collisions, 170 interface resets
0 unknown protocol drops
0 output buffer failures, 0 output buffers swapped out
295 carrier transitions
DCD=up DSR=up DTR=up RTS=up CTS=up
R2#undebu
R2#undebug all
All possible debugging has been turned off
R2#
Noisy debug message finished and Line protocol is up, additionally ping successful.
References
tech/network/cisco/wan-serial/wan-serial.txt · Last modified: 2018/10/14 11:12 by wnoguchi
