Load balaning and rtr redundancy over WAN link

Unanswered Question
Apr 11th, 2010

Hi all,

I am trying to get load balancing over 2 wan(isp link) and router redundency as well.. but failed to get the solution..

Now need expert suggestion to achive it..

I have attached the diagram for reference...


Routers(3845) connected to 2 ISP, traffic need to be shared on both.

ASA 5520 configured in routed mode, active - failover and doesnot support PBR to load balance at ASA level.

Static route is being used..

I tried below things and failed..

1. GLBP on router to do load balacing and router redundancy:

Prob: GLBP work best with multiple clients.. in diagram there is only one client i.e ASA..

2. I tried giving 2 default route at ASA but not working when one fails or any WAN links fails..

next POA..

Now i am goin to use OSPF on routers, ASA and L3 switches in LAN.. not sure if this will work fine..

Need expert suggestion on it..



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Overall Rating: 0 (0 ratings)
amardram123 Sun, 04/11/2010 - 20:55


As you can see in diagram i am having two routers and behind it ASA 5520, which doesnt support PBR.

Can i use OSPF for load balance?



Paolo Bevilacqua Sun, 04/11/2010 - 23:40

I don't think it would work. Use a single router, elimiante the ASA, it will work and and be much simpler.

amardram123 Mon, 04/12/2010 - 02:03


Cust need router redundency so need to have two router and cust also wants ssl/ra on ASA..




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