ASA 5520 Redundant Links Inbound/Outbound

Ok here's what I want to do but I'm not exactly sure how to do it thus far. On our ASA 5520 we have two "Outside" interfaces that come from separate ISP's and we have multiple statics available from both of those ISP's. I have a DMZ and INSIDE interface also. The webserver and two DNS servers are located in the DMZ. Our Exchange server is on the inside network for obvious reasons. I want to have one IP from each ISP nat'd to the exchange server and webserver. Please assume I have followed this document for my primary/backup ISP setup

would like to keep my current setup for failover of outbound traffic in the event of a failure and add inbound access from both ISP's. Thanks for any suggestions.

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Posted 5 years ago by Nick Your Company Computer Guy in Cisco Systems

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