We help IT Professionals succeed at work.

External Link Load Balancing Redundancy

Hi

Does any of Cisco's firewall products handle multiple ISP external links? Have four seperate connections and we were hoping of creating some sort of link balancer so if one linke fails, link 2 will take over.

Any suggestions
Comment
Watch Question

Top Expert 2015

Commented:
AS and BGP
Likely overkill
bbaoIT Consultant

Commented:
it depends on your application. which traffic should be load balanced? incoming or outgoing? this will take you to different approaches.

Author

Commented:
Its a bit of both to be honest. If ISP Link 1 fails I need ISP link 2 to kick in and look after internet traffic going out and site to site VPN connections coming in.

We were looking at the Barracuda Link Balancer but it looks a little basic and the interface can be a bit painful when it comes to creating firewall rules.

Thats why I was curious as to whether or not Cisco had a smiliiar product or at least one that would take multiple external ISP connections.

Thanks a mil!
Top Expert 2015
Commented:
You need AS for that (you have static IPs routable via two links)
Or you can have all the infrastructure on both subnets and rely on users pressing "refresh" "retry" and the likes until DNS updates.