This document discusses VLSM, RIP version 2, and default routes. VLSM allows for more efficient use of IP addresses by allowing variable length subnet masks. RIP version 2 was created to support VLSM and classless routing by sending subnet mask information and using multicasts instead of broadcasts. It also supports authentication. Default routes provide a path when no specific route is known and help keep routing tables shorter.

1. CCNA 3 Chapter 2 Introduction to Classless Routing By Your Name

3. What Is VLSM and Why Is It Used?

4. Wasting Space

5. When to Use VLSM?

6. Calculating Subnets with VLSM

7. Route Aggregation

8. Configuring VLSM

9. RIP version 2

11. RIP v 2 Features

12. Comparing RIP v 1 and RIP v 2

13. Configuring RIP v 2

14. Verifying RIP v 2

15. Troubleshooting RIP v 2