Router R1 connects to Router R2 over an Ethernet LAN with both routers using their F0/0
interfaces. R1 learns a route from R2 using EIGRP for IPv6. That route lists F0/0 as the
outgoing interface with R2 as the next hop. The configuration excerpt shows all relevant
configuration on R2’s F0/0 interface. Which of the following is true about R1’s route?
interface f0/0
mac-address 1111.1111.1111
ipv6 address 2000::/64 eui-64
ipv6 address 2001::1/64

A.
The next hop is 2000::1311:11FF:FE11:1111

B.
The next hop is FE80::1311:11FF:FE11:1111

C.
The next hop is FE80::5111:11FF:FE11:1111

D.
The next hop is 2001::1

Explanation:
EIGRP uses the link local address as the next hop for routing protocols. Based on
R2’s MAC address, R2’s link local address on F0/0 will be
FE80::1311:11FF:FE11:1111. This value is derived by splitting the MAC, inserting
FFFE, and flipping bit 7, making the initial hex 11 become hex 13.