In this activity, you will calculate, configure, and verify a summary route for all the networks R1 can access through R2. R1 is configured with a loopback interface. Instead of adding a LAN or another network to R1, we can use a loopback interface to simplify testing when verifying routing.

Packet Tracer - Calculating and Configuring an IPv6 Route Summarization Instructions

Packet Tracer - Calculating and Configuring an IPv6 Route Summarization - PKA