User's Guide

Table Of Contents

187

CONFIG Commands

set ip ip-ppp [vccn] rip-send

{ off | v1 | v2 | v1-compat | v2-MD5 }

Speciﬁes whether the Cayman Gateway unit should use Routing

Information Protocol (RIP) broadcasts to advertise its routing

tables to routers on the other side of the PPP link. An extension

of the original Routing Information Protocol (RIP-1), RIP Version

2 (RIP-2) expands the amount of useful information in the pack-

ets. While RIP-1 and RIP-2 share the same basic algorithms,

RIP-2 supports several new features. For example, inclusion of

subnet masks in RIP packets and implementation of multicast-

ing instead of broadcasting. This last feature reduces the load

on hosts which do not support routing protocols. RIP-2 with

MD5 authentication is an extension of RIP-2 that increases

security by requiring an authentication key when routes are

advertised.

This command is only available when address mapping for the

speciﬁed virtual circuit is turned “off”.

set ip ip-ppp [vccn] rip-receive

{ off | v1 | v2 | v1-compat | v2-MD5 }

Speciﬁes whether the Cayman Gateway should use Routing

Information Protocol (RIP) broadcasts to update its routing

tables with information received from other routers on the other

side of the PPP link.

This command is only available when address mapping for the

speciﬁed virtual circuit is turned “off”.

Static ARP Settings. Your Cayman Gateway maintains a

dynamic Address Resolution Protocol (ARP) table to map IP

addresses to Ethernet (MAC) addresses. Your Cayman Gateway

populates this ARP table dynamically, by retrieving IP address/