IPv6-over-IPv4 GRE隧道
 
 
下面给出路由器R2和R3上的配置：
 
R2#sh run
ipv6 unicast-routing
!
interface Tunnel0
 no ip address
 ipv6 address 2006:CCCC::1/64
 ipv6 rip xuhui enable
 tunnel source Serial1/2
 tunnel destination 202.100.2.2
!
interface Ethernet0/0
 no ip address
 full-duplex
 ipv6 address 2005:CCCC::1/64
 ipv6 rip xuhui enable
!
interface Serial1/2
 ip address 202.100.2.1 255.255.255.0
 serial restart-delay 0
!
ipv6 router rip xuhui
!
 
R3#sh run
ipv6 unicast-routing
!
interface Tunnel0
 no ip address
 ipv6 address 2006:CCCC::2/64
 ipv6 rip xuhui enable
 tunnel source Serial1/3
 tunnel destination 202.100.2.1
!
interface Ethernet0/0
 no ip address
 full-duplex
 ipv6 address 2004:CCCC::1/64
 ipv6 rip xuhui enable
!
interface Serial1/3
 ip address 202.100.2.2 255.255.255.0
 serial restart-delay 0
!
ipv6 router rip xuhui
!