The technical way to do this is with something called BGP. It will require some config work on your end, coordination with technical resources at your ISPs, and some higher-end gear. In order to get your mail and web working seamlessly across both you're going to need this and they'll have to give you a /24 that you can announce over BGP.
If you're a smaller shop you might just look at an appliance that can handle two connections and put a low TTL on the website DNS record and you can manually update it. It might also just be (probably) cheaper to put the website in a facility somewhere and deal with mail with two MX records and be done with it. Thanks, Brian Desmond [email protected] c - 312.731.3132 From: Stefan Jafs [mailto:[email protected]] Sent: Thursday, June 24, 2010 2:31 PM To: NT System Admin Issues Subject: Redundant Mail and Web We currently have a 10Mbps /10 Mbps Internet connection, we have had some down time in the last few days, and the carrier is blaming it on the G8/G20 Summit (I'm in Toronto) and Soccer. Anyhow I'm thinking about having an other redundant Internet connection, what's the best way to accomplish this, preferably automatically. Internet browsing is relatively easy to switch pats in my Router if 1 connection goes down but how about Mail and our web site, since these are incoming connections. Any ideas? -- Stefan Jafs ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~
