Description : This lab demonstrates the traceroute functionality
with respect to IPv6.

Instructions:
1. Enter into global configuration mode on R1 and assign IPv6
address to its serial 0 and ethernet 0 interfaces.
2. Enter into global configuration mode on R2 and assign IPv6 address
to its ethernet 0 interface
3. Enter into global configuration mode on R3 and assign IPv6 address
to its serial 0 interface.
4. Test for traceroute command on router R2 to trace its path to reach
router R3.