OSPF External Summary Routes

From: Adam Frederick (AFrederick@homefederalbank.com)
Date: Tue Oct 31 2006 - 10:59:14 ART


I have a Hub & Spoke FR Cloud utilizing the OSPF Non-Broadcast network
type. There is a PPP link hanging off of the Hub router connecting to a
stub router. There is an Ethernet link hanging off of the Spoke that is
bringing RIP routes into OSPF. For example 190.17.1.0 through
190.17.6.0. I'm using the "summary-address 190.17.1.0 255.255.248.0"
command to summarize these routes on the ASBR (Spoke) so I only have 1
route in the OSPF domain. I do get the route installed in my routing
tables, however the IP's are unreachable from every device except the
spoke that is redistributing. Any suggestions right off as to why it
would install the route but be unreachable? The Ethernet is reachable,
but not beyond that when I do a traceroute.



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