In this case Using Cisco ISR 1841 15.1(4)M10.

• SLAAC(Stateless Auto Address Configuration)
• DHCPv6-PD(Prefix Delegation)

ipv6 unicast-routing
ipv6 nd ra suppress
! or
ipv6 nd ra suppress all

R3#conf t
Enter configuration commands, one per line.  End with CNTL/Z.
R3(config)#ipv6 uni
R3(config)#ipv6 unicast-routing
R3(config)#int f0/1
R3(config-if)#ipv6 nd ra su
R3(config-if)#ipv6 nd ra suppress a
R3(config-if)#ipv6 nd ra suppress ?
  all  Suppress all IPv6 Router Advertisements
  <cr>

R3(config-if)#ipv6 nd ra suppress all
R3(config-if)#ipv6 nd ra suppress all
R3(config-if)#int f0/0
R3(config-if)#no ipv
R3(config-if)#no ipv6 nd
R3(config-if)#no ipv6 nd ra
R3(config-if)#no ipv6 nd ra su
R3(config-if)#no ipv6 nd ra suppress
R3(config-if)#^Z
R3#sh ru
*Jul  9 00:36:19.443: %SYS-5-CONFIG_I: Configured from console by console
R3#sh run | i ipv6
ipv6 unicast-routing
ipv6 cef
 ipv6 nd ra suppress all
R3#sh run int f0/0
Building configuration...

Current configuration : 83 bytes
!
interface FastEthernet0/0
 no ip address
 shutdown
 duplex auto
 speed auto
end

R3#sh run int f0/1
Building configuration...

Current configuration : 108 bytes
!
interface FastEthernet0/1
 no ip address
 shutdown
 duplex auto
 speed auto
 ipv6 nd ra suppress all
end

R3#

• M flag
• O flag

R3#conf t
Enter configuration commands, one per line.  End with CNTL/Z.
R3(config)#int f0/0
R3(config-if)#ipv
R3(config-if)#ipv6 nd
R3(config-if)#ipv6 nd ma
R3(config-if)#ipv6 nd managed-config-flag
R3(config-if)#ipv
R3(config-if)#ipv6 nd other
R3(config-if)#ipv6 nd other-config-flag
R3(config-if)#

1. IPv6ホストのアドレス設定（ステートレス、ステートフル、DHCPv6）