The comparison can really be between ip route 0.0.0.0 (default route and is statically configured) and ip default-network. Most routing protocols (RIP included) will understand the ip route 0.0.0.0 and will flag the route as the gateway of last resort.
However IGRP will not know what to do with ip route 0.0.0.0, it will need ip default-network statement, AND the network referenced therein should be "known" to it. It will forward packets with unknown next-hop to the network mentioned in the default-network. Say for example you have ip default-network 192.168.1.0 , IGRP "must" know about the existence of 192.168.1.0 (check your routing table, sh ip route) if 192.168.1.0 doesnt exist, it WOULD NOT be flagged as the default route. You will also encounter something called ip default gateway , this is used ONLY when the routing process is disabled on the router (as in when the router boots the RXBOOT image) and when so, all packets will be forwarded to the ip address mentioned in the ip default gateway. Nick Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=29955&t=29895 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
