ROUTER 1
enable secret class
line console 0
password cisco
login
exit
line vty 0 4
password cisco
login
ipv6 unicast-routing
int gi0/0
ipv6 address 2001:DB8:ACAD:A::1/64
no shutdown
exit
int gi0/1
ipv6 address 2001:DB8:ACAD:1::1/64
no shutdown
exit
interface g0/0
ipv6 address fe80::1 link-local
interface g0/1
ipv6 address fe80::1 link-local