1. Copyright 2008 Kenneth M. Chipps Ph.D. www.chipps.com Cisco CCNA Exploration CCNA 2 Routing Protocols and Concepts Chapter 5 RIP Version 1 Last Update 2008.05.02 1.0.0 1

2. Objectives None Copyright 2008 Kenneth M. Chipps Ph.D. www.chipps.com 2

3. Why There is little to say about RIP version 1 as no one uses it No one has used it for years Why Cisco devotes an entire chapter to it is beyond me It is also quite strange that the command router rip still defaults to version 1 Copyright 2008 Kenneth M. Chipps Ph.D. www.chipps.com 3

4. Why I am all for compatibility, but at some point it is time to cut the past loose This is also the case with the silly need to specify subnet and wildcard masks instead of using slash notation But I digress So I will very briefly cover this chapter The real RIP stuff is in the next lecture Copyright 2008 Kenneth M. Chipps Ph.D. www.chipps.com 4

5. RIP v 1 RIP Version 1 is a classful routing protocol This means it can not work with CIDR or VLSM As such it is useless Copyright 2008 Kenneth M. Chipps Ph.D. www.chipps.com 5