Router R1 has the following configuration. Assuming R1’s F0/0 interface has a MAC address
of 0200.0011.1111, what IPv6 addresses will R1 list for interface F0/0 in the output of the
show ipv6 interface brief command?
interface f0/0
ipv6 address 2345:0:0:8::1/64
A.
2345:0:0:8::1
B.
2345:0:0:8:0:FF:FE11:1111
C.
FE80::8:0:FF:FE11:1111
D.
FE80:0:0:8::1
Explanation:
The ipv6 address command does not list an eui-64 parameter, so R1 does
not form its global unicast address using the EUI-64 format. However, it does form its
link local address using EUI-64. The show ipv6 interface brief command lists both
the global unicast and link local addresses in its output.
R1(config)#ipv6 unicast-routing
R1(config)#inter f 0/0
R1(config-if)#ipv6 address 2345:0:0:8::1/64
R1(config-if)#do show ipv6 inter bri
FastEthernet0/0 [administratively down/down]
FE80::FF:FE11:1111
2345:0:0:8::1
0
0
For a MAC 0200.0011.1111
0
0