I'm looking to find out if anyone has done anything like what I'm proposing here and can confirm whether it will work:
I have a customer with two Internet connections. They have the one connection that they have always used for browsing, hosting their mail server, hosting web and ftp servers, etc. They purchased a second connection with the thought of getting redundancy and load balancing between the two. (And didn't bring me in until after the fact, so now I'm left figuring out how to make it work.)
Being kind of old school I had just figured I would do BGP. But the ISPs don't want to play ball, so I'm looking for a different solution. I'm told that if I get a Sonicwall 2040 with the enhanced image that I can configure two discreet WAN ports, running one to each ISP. The Sonicwall will then load balance between the two and failover to whichever one is still working should the other go down. I know that there are less expensive options than the Sonicwall. But these guys have several servers that have to be visible to the outside for mail, ftp and web. So I have to be able to do static translations, access-lists and all that good stuff. (And I have to be able to have a single host on the inside (private side) that has static translations to public ips on each of the ISP connections simultaneously.)
I would then move their DNS records to some place like dnsmadeeasy.com, where they have failover DNS options that monitor the status of the server at the end of an A record and fail over to a second address if it goes down. So the ftp server, for example, would normally be available via ISP 1, but if that ISP went down the DNS host would fail over to the public address for the server via ISP 2.
Whadayathink? would this work?
Ben
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