Redistributed bgp-to-eigrp routes not appearing in ASA route table

Michael Marzol · ‎11-14-2012

Hello,

We have a 2951 router running BGP whose routes we redistribute into EIGRP for an adjacent 3560 switch. The switches table shows all the redistributed routes (D EX) however the ASA to which that switch is connected to does not show the additional routes, only the local LAN subnet learned from the neighboring switch over EIGRP. See below:

Switch eigrp configuration and route table showing redistributed routes learned from neighboring 2951 router:

router eigrp 15

network 10.20.0.0 0.0.255.255

eigrp stub connected summary redistributed

D EX 10.50.30.0/24 [170/429312] via 10.20.50.101, 01:35:17, Vlan50

D EX 10.30.50.0/24 [170/429312] via 10.20.50.101, 01:35:17, Vlan50

D EX 10.15.35.0/24 [170/429312] via 10.20.50.101, 01:35:17, Vlan50

D EX 10.15.34.0/24 [170/429312] via 10.20.50.101, 01:35:17, Vlan50

D EX 10.0.32.0/24 [170/429312] via 10.20.50.101, 01:35:17, Vlan50

D EX 10.50.20.0/24 [170/429312] via 10.20.50.101, 01:35:17, Vlan50

C 10.20.50.0/24 is directly connected, Vlan50

D EX 10.45.10.0/24 [170/429312] via 10.20.50.101, 01:35:17, Vlan50

D EX 10.50.10.0/24 [170/429312] via 10.20.50.101, 01:35:17, Vlan50

D EX 10.15.50.0/24 [170/429312] via 10.20.50.101, 01:35:17, Vlan50

ASA route table showing only the local subnets (EIGRP neighbor with the switch):

Gateway of last resort is X.X.X.X to network 0.0.0.0

C    X.X.X.X 255.255.255.248 is directly connected, OUTSIDE
D    10.20.30.0 255.255.255.0 [90/3072] via 10.20.10.1, 1:37:17, INSIDE
D    10.20.28.0 255.255.255.0 [90/3072] via 10.20.10.1, 1:37:17, INSIDE
D    10.20.27.0 255.255.255.0 [90/3072] via 10.20.10.1, 1:37:17, INSIDE
D    10.20.20.0 255.255.255.0 [90/3072] via 10.20.10.1, 1:37:17, INSIDE
C    10.20.10.0 255.255.255.0 is directly connected, INSIDE
D    10.20.50.0 255.255.255.0 [90/3072] via 10.20.10.1, 1:37:17, INSIDE
S*   0.0.0.0 0.0.0.0 [1/0] via X.X.X.X, OUTSIDE

Rick Morris · ‎11-14-2012

I believe your issue is in the eigrp stub command, I have never set up a stub configuration so I am not 100% familiar with what it intentions are. This link seems to discuss all the different scenrios and config examples of such.

http://www.cisco.com/en/US/docs/ios/12_0s/feature/guide/eigrpstb.html

For my own sanity sake I would remove that line and see if that affects the announcement.

Michael Marzol · ‎11-15-2012

Thanks for the reply Rick. That's actually one of the first things I tried when I noticed the issue. Unfortunately I get the following error when trying to remove that bit of configuration:

EIGRP is restricted to stub configurations only on this platform.

At first I only had the default 'connected' and 'summary' parts of the stub configuration. Then I found the 'redistribute' command which I thought for sure would solve my problem by broadcasting the redistributed external EIGRP routes to the ASA....but no luck.