cancel
Showing results for 
Search instead for 
Did you mean: 
cancel
1500
Views
0
Helpful
13
Replies

BGP Routing issue

rodonohu1
Level 1
Level 1

Hi guys,

I have an issue with a remote site. it routes traffic to my primary site via a backup tunnel rather than the neighbor MPLS site. I cant see why this is happening.

Please see the below config snipt and see what I'm doing wrong. My knowledge of BGP is limited and i'm coming into this problem after it was configured so i'm having trouble see whats wrong. I did notice however the the ACL 20 referenced in the route map below is not in the ACL list. If i'm using 172.16.128.0 and 172.16.129.0 what should my mask be 0.0.127.255???

router bgp 65204

no synchronization

no bgp fast-external-fallover

bgp log-neighbor-changes

network 172.16.128.0 mask 255.255.255.224

network 172.16.128.32 mask 255.255.255.224

network 172.16.128.64 mask 255.255.255.248

network 172.16.128.72 mask 255.255.255.248

network 172.16.129.0 mask 255.255.240.0

aggregate-address 172.16.128.0 255.255.254.0 summary-only

neighbor 172.16.0.6 remote-as 19855

neighbor 172.16.0.6 version 4

neighbor 172.16.0.6 send-community

neighbor 172.16.0.6 prefix-list Frankfurt-nets out

neighbor 172.16.0.6 route-map extranet out

neighbor 192.168.7.181 remote-as 65100

neighbor 192.168.7.181 version 4

neighbor 192.168.7.181 prefix-list Default-Route-Only in

neighbor 192.168.7.181 route-map AS-Prepend out

no auto-summary

route-map extranet permit 10

match ip address 20

set community 65000:3549

!

route-map extranet permit 1000

!

route-map aspath permit 10

match ip address prefix-list Frankfurt-nets

set as-path prepend 65204 65204 65204

set community 65000:3549

!

route-map AS-Prepend permit 10

set as-path prepend 65204 65204 65204