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How to route with two firewalls and each has their own ISP

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  • 1.  How to route with two firewalls and each has their own ISP

    Posted 3 hours ago

    I have been working on this for awhile, going back and forth with our Security person... 

    We have a network with a firewall on each "side" and each firewall has its own ISP. We want to set it up to send traffic out whichever one is currently up if either ISP goes down for whatever reason, but ideally, both would be active.

    For Example:

    ISP 1 <--> Firewall 1 <--> Switch A <--> Switch B <--> Switch C <--> Firewall 2 <--> ISP 2

    I am trying to figure out how I can use routing to use either one with both connections being up. I'm using OSPF as my routing protocol and was thinking I could use a different metric maybe or some kind of static routes and then redistribute them. Has anyone done something similar to this or is there a better way to go about this? I thought maybe EIGRP instead of OSPF?