User Guide

IP Configuration Screen

Local Management User’s Guide 1-43

Compatibility Switch — A compatibility switch is necessary for two reasons. First, there are

implementations of RIP-1 in the ﬁeld that do not follow RFC1058, and second, the use of

multicasting would prevent RIP-1 systems from receiving RIP-2 updates (which may be a desired

feature in some cases). This switch is conﬁgurable on a “per-interface” basis.

The switch has four send settings:

• RIP-1, in which only RIP-1 messages are sent (and received)

• RIP-1 Compatible, in which RIP-2 messages are broadcast

• RIP-2, in which RIP-2 messages are multicast

• DON’T SEND, which disables the sending of all RIP messages

The receive control has four settings:

• RIP1, only accept RIP-1 messages

• RIP2, only accept RIP-2 messages

• RIP1/RIP2, accept both RIP-1 and RIP-2 messages

• DON’T RCV, do not accept any type of RIP messages

This control is also conﬁgurable on a “per-interface” basis.

If the router is not conﬁgured to authenticate RIP-2 messages, then RIP-1 and unauthenticated

RIP-2 messages will be accepted. Authenticated RIP-2 messages will be discarded. If the router is

conﬁgured to authenticate RIP-2 messages, then RIP-1 messages and RIP-2 messages which pass

authentication testing will be accepted. Unauthenticated and failed authentication RIP-2 messages

shall be discarded.