========== SHOW INTERFACES ==========

RouterA#show interfaces
GigabitEthernet0/0 is up, line protocol is up
  Hardware is iGbE, address is 0ca8.ba4f.9b00 (bia 0ca8.ba4f.9b00)
  Description: Uplink RouterB

RouterB#show interfaces
GigabitEthernet0/0 is up, line protocol is up
  Hardware is iGbE, address is 0ca8.baee.5700 (bia 0ca8.baee.5700)
  Description: Uplink RouterA

========== CONFIGURE INTERFACES ==========

RouterA#configure terminal
RouterA(config)#interface gigabitEthernet 0/0
RouterA(config-if)#ipv6 address 2001:db8:3c4d:2::/64 eui-64
RouterA(config-if)#end
RouterA#

RouterB#configure terminal
RouterB(config)#interface gigabitEthernet 0/0
RouterB(config-if)#ipv6 address 2001:db8:3c4d:2::/64 eui-64
RouterB(config-if)#end
RouterB#

========== SHOW IPV6 INTERFACE BRIEF ==========

RouterA#show ipv6 interface brief gigabitEthernet 0/0
GigabitEthernet0/0     [up/up]
    FE80::EA8:BAFF:FE4F:9B00
    2001:DB8:3C4D:2:EA8:BAFF:FE4F:9B00

RouterB#show ipv6 interface brief gigabitEthernet 0/0
GigabitEthernet0/0     [up/up]
    FE80::EA8:BAFF:FEEE:5700
    2001:DB8:3C4D:2:EA8:BAFF:FEEE:5700

========== PING ==========

RouterA#ping 2001:DB8:3C4D:2:EA8:BAFF:FEEE:5700
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 2001:DB8:3C4D:2:EA8:BAFF:FEEE:5700, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 1/2/10 ms