Load Balancing with 2 Routers and Single FW

From: Aamir Aziz (aamiraz77@gmail.com)
Date: Tue Feb 05 2008 - 06:08:11 ARST

Hi Group:

I have a simple scenario:

Router 1 Router 2
     \ /
       \ /
        \ /
          \ /
          Switch 1
              |
              |
              |
         Firewall

Router 1 and Router 2 are connected to Internet. Hosts are behind the
firewall so how to acheive load-balancing in order to utilize both the
Internet Links?. I want firewall to have one default route. If i use
GLBP on Router 1 and Router 2 it wont work as FW will arp and get
virtual MAC of any one router or i simply use the switch as layer 3
and define two default routes on the switch pointing towards Router 1
and Router 2? what would be the best practice?

Thanks
Aamir

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