Re: Eigrp summary-route

Anantha,

The route you are summarizing needs to be in EIGRP in order for it to be
summarized and advertised. How you get it into EIGRP does not matter
(network command or redistribute). In your scenario, I would think the
summary should be advertised. Here is a similar scenario I just tried:

R7----150.50.78.0----R8

R7#sho run int s0/0
Building configuration...

Current configuration : 212 bytes
!
interface Serial0/0
 ip address 150.50.78.1 255.255.255.252
 encapsulation ppp
 ip summary-address eigrp 1 150.50.0.0 255.255.0.0 5
 clock rate 2000000
end

R7#sho ip route | inc 150.50
D EX 200.0.0.4 [170/2560512256] via 150.50.78.2, 00:21:20, Serial0/0
     150.50.0.0/16 is variably subnetted, 4 subnets, 3 masks
D 150.50.0.0/16 is a summary, 00:03:50, Null0

Are R1 and R3 EIGRP neighbors in your example?

Bryan Bartik
CCIE #23707 (R&S), CCNP
Sr. Support Engineer - IPexpert, Inc.
URL: http://www.IPexpert.com

Blogs and organic groups at http://www.ccie.net
Received on Tue May 26 2009 - 14:28:22 ART