Re: BGP summary

Santiago,

You can use the distance command under BGP:

R2(config)#router bgp 200
R2(config-router)#aggregate-address 200.0.0.0 255.255.252.0 sum

This creates the following on R2:

C 200.0.0.0/24 is directly connected, Loopback200
C 200.0.1.0/24 is directly connected, Loopback201
C 200.0.2.0/24 is directly connected, Loopback202
C 200.0.3.0/24 is directly connected, Loopback203
B 200.0.0.0/22 [200/0] via 0.0.0.0, 00:00:03, Null0

R2(config)#router bgp 200
R2(config-router)#distance bgp 20 200 ?
  <1-255> Distance for local routes

R2(config-router)#distance bgp 20 200 255

R2#cle ip rou *

The null route is now removed:

R2#sho ip rou | inc Null
R2#

-hth

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

On Mon, May 18, 2009 at 2:16 PM, Santiago Enciso
<senciso_at_infocenter.com.py>wrote:

> Is there a way to prevent the router from generating the null0 as a result
> of aggregate-address command in BGP like in ospf discard-route command?
>
>
> Thanks
>
> San
>
>
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