4507 L3 swith with 12.2(18)EW. Ways to get automatic Internet failover

[fortis123]

Hi All,

Straight & simple query..:-). 4507 with IOS 12.2(18)EW acting as L3 core having default gateway to PIX inside (ip route 0.0.0.0 0.0.0.0 192.168.100.1). It also got 1gig p2p connectiont main data center. I want the internet to automatically failover to main datacenter incase if the PIX looses internet connectivity (PIX -->Internet rtr--> carrier) and take over via PIX when the internet connection comes back. Will object tracking feature works here or any other suggestions are welcome.

Thank you all

MS

[cpubob]

I would add a floating static route and then redo your current default with a track object.

Assuming 10.1.1.1 is the gateway that your pix uses (providers interface) and 192.168.200.1 is your datacenter gateway, this would be the config.

ip route 0.0.0.0 0.0.0.0 192.168.200.1 200

ip route 0.0.0.0 0.0.0.0 192.168.100.1 track 100

!

track 100 rtr 1 reachability

!

ip sla 1

icmp-echo 10.1.1.1

frequency 15

timeout 30

!

ip sla schedule 1 life forever start-time now

!

You could alternatively configure bgp but I think it would be more hassle.

[fortis123]

I looked for this option in first place, before I posted the query, but with the current IOS, it does not support 'track 100 rtr 1 reachability '

PROD-4507-S1(config)#track 100 ?

interface Select an interface to track

Also, 'ip sla' support is not there..

Thank you

MS

[cpubob]

I tried this on my 4500 and it worked but I am running 12.2(46)SG.