RE: Specific route manipulation in BGP

This has been an issue where you can't cut-paste the config in the study
group. I will try to type the config
The config !router bgp 65500 neighbor 10.255.0.26 TRAFFIC_OVER_L2 out!ip
prefix-list OVER_L2 seq 5 permit 10.100.60.0/24ip prefix-list OVER_L2 seq 10
permit 10.100.22.0/24ip prefix-list OVER_L2 seq 15 permit 10.100.126.0/23ip
prefix-list OVER_L2 seq 20 permit 10.3.0.0/16!
Is there a way to exclude 10.3.20.x/24 from 10.3.0.0/16?
-yuri

Date: Mon, 23 Dec 2013 18:05:56 +0100
From: fabre.gilles_at_voila.fr
To: ebay_products_at_hotmail.com; ccielab_at_groupstudy.com
Subject: re: Specific route manipulation in BGP

hi

 not sure I understand exactly (config is almost unreadable as CR were lost in
the message), but for what I see you need to setup different ways for subset
routes of a /24 block.
 In order to act on a prefix, you have to receive it from the remote
neighbor...
 Otherwise, inject-maps can be an option.

Gilles.

> Message du 23/12/13 ` 16h27
> De : "Cisco Fanatic"
> A : "ccielab_at_groupstudy.com"
> Copie ` :
> Objet : Specific route manipulation in BGP
>
> It's easy when I read theory all clear, but let me ask the experts here and
> see if i can nail this down.
> p-t-p connection named layer 2, L2.
> 1 side 10.100.x.x/24 and other side 10.20.x.x
> Is there a way to exclude and be specific out of 10.100.x.x/24 and
> 10.20.x.x/24 subnets so traffic below only goes to Layer 2, L2?
> 10.100.60.11 _` 10.20.80.1110.100.60.13 _` 10.20.80.11
> !router bgp 65500 bgp log-neighbor-changes redistribute connected
redistribute
> static redistribute eigrp 1000 neighbor 10.255.0.26 remote-as 65501
neighbor
> 10.255.0.26 timers 30 90 neighbor 10.255.0.26 soft-reconfiguration inbound
> neighbor 10.255.0.26 route-map setweightCAin in neighbor 10.255.0.26
route-map
> TRAFFIC_OVER_L2 out!access-list 10 permit 10.13.0.0 0.0.255.255access-list
10
> permit 10.20.22.0 0.0.0.255access-list 10 permit 10.20.80.0
> 0.0.0.255!route-map setweightCAin permit 10 match ip address 10 set weight
> 32769!ip prefix-list OVER_L2 seq 5 permit 10.100.60.0/24ip prefix-list
OVER_L2
> seq 10 permit 10.100.22.0/24ip prefix-list OVER_L2 seq 15 permit
> 10.100.126.0/23!route-map TRAFFIC_OVER_L2 permit 10 match ip address
> prefix-list OVER_L2!route-map TRAFFIC_OVER_L2 permit 20 set as-path prepend
> 65500 65500 65500 65500!
>
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Received on Mon Dec 23 2013 - 10:43:09 ART