From: Matt Wagner (miguknom@xxxxxxxxxxx)
Date: Thu Sep 06 2001 - 01:52:22 GMT-3
Scenario. I have a router that has three routing protocols running on it:
IGRP, OSPF, and RIP.
1. OSPF is exchanging routes both ways with RIP2 and with IGRP.
2. IGRP and RIP2 are matching internal and external 1 & 2 from OSPF.
3. IGRP and RIP2 are not redistributing each other.
All downstream OSPf routers see all routes, internal and external.
Downstream RIP2 routers see all internal and external OSPF routes, except
the ones in that were installed to the main router's routing table via IGRP.
Downstream IGRP routers see all internal and external OSPF routes, except
the ones in that were installed to the main router's routing table via RIP2.
How is it that when redistributing from OSPF, another routing protocol (RIP2
or IGRP) can leave out external routes that were installed to the routing
table by the opposite protocol (IGRP or RIP2)?
I can post my routing table and my OSPF database if you need me to, but
really it's clean. Is this the norm? For the record, this is router 5 on
the 4.5 ASET lab. I'm trying to avoid using the ip-default-network if
possible by summarizing, etc. My lab is in less than a week and suddenly I
realize that there seems to be something fundamental that I don't
understand. Thanks in advance...
Matt
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