From: Walter Chen (wchen@xxxxxxxxx)
Date: Mon May 28 2001 - 16:34:12 GMT-3
Simple. Just put a static route to 172.16.1.0/24 and then use "network"
command to advertise it. Since this is a "real life" scenario, you can use
static I guess.
Walter
----- Original Message -----
From: Eric Vanuska <eric.vanuska@thinkware.net>
To: <ccielab@groupstudy.com>
Sent: Monday, May 28, 2001 12:30 PM
Subject: Real life BGP Subnet Question
> Hello all,
>
> I would like to be able to advertise a single subnet of a class B
> network when I only learn of the class B summary address.
>
> For example, I want to advertise 172.16.1.0/24, but I only have
> the class B summary 172.16.0.0/16.
>
> I don't want to use "no sync" because we have multiple paths
> and want to be able to use them.
>
> I've tried an aggregate-address - no success..
>
> Ideas? Configs are below.
> Thanks, Eric V.
>
>
>
> router bgp 1000
> bgp router-id 192.168.63.254
> aggregate-address 172.16.1.0 255.255.255.0 (also tried without this
> statement)
> redistribute ospf 100 route-map To-Partner
> neighbor 192.168.63.1 remote-as 2000
> neighbor 192.168.63.1 soft-reconfiguration inbound
> neighbor 192.168.63.1 route-map From-Partner in
> no auto-summary
> !
> ip classless
> no ip http server
> !
> access-list 50 permit 172.31.0.0 0.0.255.255
> !
> access-list 75 permit 192.168.129.0 0.0.0.255
> access-list 75 permit 172.16.1.0 0.0.0.255
> !
> route-map From-Partner permit 10
> match ip address 50
> !
> route-map To-Partner permit 10
> match ip address 75
>
>
>
> Router#sh ip bgp neigh 192.168.63.1 adv
> BGP table version is 308, local router ID is 192.168.63.254
> Status codes: s suppressed, d damped, h history, * valid, > best, i -
> internal
> Origin codes: i - IGP, e - EGP, ? - incomplete
>
> Network Next Hop Metric LocPrf Weight Path
>
> *> 192.168.129.0 0.0.0.0 0 32768 ?
> **Please read:http://www.groupstudy.com/list/posting.html
**Please read:http://www.groupstudy.com/list/posting.html
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