I am presuming you are talking about web, mail, ftp, etc... in from the Internet
Have your ISP or your authoritative and secondary DNS server have dual host records. Have the MX record weighted something like 10 of 1 and 20 for the next.
Have your router (hopefully there is a firewall in the mix :-) NAT both external range ip's for each server tot he servers. If your network device will not allow 2 NAT's to the same IP, give the servers secondary IP's and NAT to those.
Dynamic DNS will not help in this instance. :-(
-James
At 10:12 7/28/2003, Luke Levis wrote:
currently I have a Cisco 2651 with Dual ethernet ports and 2 T-1's connected to it one is our primary connection and the other is our backup that we want to failover to.. we were going to use BGP, but it turns out that our secondary T doesn't have an AS# registered to it.. our biggest problem is when the primary T goes down and I change the gateway on the router to the other T.. outbound is fine, but how do I get it so DNS will translate to my critical servers on the second line... is this something that Dynamic DNS could accomplish?? ***************************************************************************
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