Hi,
Just wondered if anyone can assist with this as it?s a urgent request from our customer.
Basically, we have a site with 2 x 34mb WAN links. The links work as traditional Primary / Backup so all traffic (e.g. 192.168.0.0) is routed in/out of the Primary link under normal operation. Should the Primary fail them all traffic routes over the Backup link.
Over the last few weeks Primary 34mb circuit has become overloaded so the customer has asked us to route just the IPT subnets over the backup link.
We use EIGRP on the LAN side and redistribute into BGP on the WAN side.
So, now the customer wants us to route juts the IPT subnet 10.2.0.0 in/out over the Backup link while all 192.168.0.0 traffic continues to use the Primary cirucit . But should the Backup link fail we would need the IPT subnet to route back via the Primary link. Hope that makes sense.
Does anyone know the best way to achieve this.?
We use the following commands under EIGRP / BGP to route all traffic in/out over the Primary link. I?ve changed the ip addresses but hopefully you get the drift.
Thanks for any help in advance.
John
interface GigabitEthernet0
bandwidth 34000
!
interface GigabitEthernet0.16
description WAN Primary
ip address 192.168.1.1. 255.255.255.0
router eigrp 8001
network 192.168.0.0
no auto-summary
timers active-time 10
redistribute bgp 49 route-map bgp-eigrp
!
router bgp 49
redistribute eigrp 8001 route-map eigrp-bgp
neighbor x.x.x.x remote-as 6xxx
neighbor x.x.x.x default-originate
neighbor x.x.x.x route-map set-localpref-pri in
neighbor x.x.x.x route-map set-med-pri out
maximum-paths 2
no auto-summary
route-map bgp-eigrp deny 10
description block any prev bgp-eigrp redistr routes
match tag 999
!
route-map bgp-eigrp permit 30
description set eigrp metric and set tag
set metric 34000 100 255 1 1500
set tag 999
!
route-map eigrp-bgp deny 10
description block any prev bgp-eigrp redistr routes
match tag 999
!
route-map eigrp-bgp permit 20
description permit all other routes learned via EIGRP
set metric 100
!
route-map set-med-pri permit 10
description set bgp med to influence inbound routing. Lower is better
set metric 100
!
route-map set-locafpref-pri permit 10
description set bgp local pref to influence outbound routing. higher is better
set local-preference 150