next-hop reachable through default

From: Gustavo Novais (gustavo.novais@novabase.pt)
Date: Tue Dec 06 2005 - 16:00:44 GMT-3

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Hello,

I'm doing IEWB3.0 lab 10 bgp section.

Here I have R4 and R3 which are EBGP peers, using their loopback
interfaces as source. But R4 IGP's is OSPF and R3 IGP is EIGRP. OSPF is
redistributed into EIGRP but EIGRP is NOT redistributed into OSPF.
Instead a default route is generated to R4

Regarding the peering there are no problems. But regarding the routes
being installed, I was expecting that as my next hop (R3) is reachable
through a default, R4 would not install any routes coming from it.

Instead it does.

Can anybody explain if the behaviour was recently changed, or if I am
mistaking something? I am running version 12.3.

According to "Troubleshooting IP Routing Protocols" it should not accept
the routes...

Thanks

Gustavo Novais

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