Incorrect EIGRP redistribution

[johnross400]

Can anyone tell me why I get different results when I redistribute static routes (learned through BGP) into EIGRP. I am filtering two external routes, one at a time, but the downstream router only shows the expected result on one route (AD=170) but not the other.

It is difficult to explain so I have attached the drawing and configurations and the results.

I am sure it is quite straight forward, but I simply cannot get both routes to redistribute the same. One works - the other does not.

Why is one route learned incorrectly?????

[tdrais]

A couple of thing I see but I am unclear how this can happen with the configurations you posted.

In your show route file the main difference between the 2 is that 192.168.250.0/24 is a EIGRP external route which means it was more than likely redistibuted in. The 192.168.1.212/30 route is a EIGRP internal route.

Looking at your configs I cannot really see how either of these happen since the provided config show s a static for 192.168.1.212 and it should be redistributed as a static and therefore be a exteral.

I cannot see how this gets in as a internal route.

The other issue is when you redistribute the BGP into EIGRP you did not specify a metric. Unless this was changed when you do this you get nothing redistributed. That does not explain how you got it into the table as a external in your sample since it must have come from someplace. Maybe you have a default EIGRP metric that you did not put in your posts.

[Harold Ritter]

The reason 192.168.1.212/30 is seen as an EIGRP internal route is that the static route is configured with a physical interface as the next hop and that you have a network statement covering this prefix under the EIGRP processon Taos.

The same does not happen with 192.168.250.0/24 since there is no network statement on under the EIGRP process on Taos for this prefix. It is then redistributed via the "redistributed static" command.

Hope this helps,

[johnross400]

Yes this did help -thanks!

I had a major network statement at Taos (network 192.168.1.0) which meant that both interfaces S0/0 & F0/0 were running the EIGRP process. When I replaced this network statement to include wildcard bits, and only F0/0 ran the EIGRP process, the downstream router then learned the route as external.

Thanks again!!