Internet redundancy with two ISP

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Collin Clark Mon, 12/10/2007 - 08:35
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You could add two default routes in the ASA, each pointing to the E0 interface of a router.

HTH and please rate.

Edison Ortiz Tue, 12/11/2007 - 07:06
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In order to achieve load balance, both ISPs must announce your routes. Without BGP, I don't see how this is going to work.

You may force load balance on packets leaving the interface(s) but you need to think about the return traffic as well.

Collin Clark Tue, 12/11/2007 - 07:16
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BGP is not required since you're looking to load balance outbound only. Like Edison noted, the return traffic will not be balanced in any sort of way. The two default routes is a poor way of load-balancing, however with the equipment you have it will work, but certainly don't expect a 1:1 ratio.


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