2 ISP's to corporate network

First off, forgive me if this is the wrong area to post. I am hoping someone
here has some experince with my hair-pulling situation.

I have 2 ISP's (totally different providers/addresses) that I would like to
"TEAM" for failover (we have one link that drops periodically). I think I
have a router selected that will allow me to connect the 2 ISP's into one
route in/out my network.

The troubleing piece is DNS, or rather what do to with my corporate web
server/services. Today, ISP 1 is a secondary name server for my DNS records
(I am primary). I do not have any DNS configured yet on the second link. If
ISP1 goes down, how does a client get routed to the same site, but on ISP2's
network?

ISP1 ----- 1.2.3.4
-->(router) ------> (www server)
ISP2 ----- 5.6.7.8

Your guidance would be greatly appreciated!

"Scott" <(E-Mail Removed)> wrote in message
news:8C4260CF-5622-4B5F-9D15-(E-Mail Removed)...
> "TEAM" for failover (we have one link that drops periodically). I think I
> have a router selected that will allow me to connect the 2 ISP's into one
> route in/out my network.

That is all you need for that part of it.

> The troubleing piece is DNS, or rather what do to with my corporate web
> server/services. Today, ISP 1 is a secondary name server for my DNS
records
> (I am primary). I do not have any DNS configured yet on the second link.
If
> ISP1 goes down, how does a client get routed to the same site, but on
ISP2's
> network?

The client simply will not be able to. This isn't something you even have
control over. The ISP (only the one) is the authoritative DNS source for
the Domain,...the other ISP will have no role in it. If anything can be
"worked out" it will have to be done by the ISP,...and it may mean,...(God
forbid..) that the two ISPs may even have to work together.

The right way to do this is to get two lines from the same ISP.

--
Phillip Windell [MCP, MVP, CCNA]
www.wandtv.com
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Understanding the ISA 2004 Access Rule Processing
http://www.isaserver.org/articles/IS...cessRules.html

Troubleshooting Client Authentication on Access Rules in ISA Server 2004
http://download.microsoft.com/downlo...7/ts_rules.doc

Microsoft Internet Security & Acceleration Server: Guidance
http://www.microsoft.com/isaserver/t...dance/2004.asp
http://www.microsoft.com/isaserver/t...dance/2000.asp

Microsoft Internet Security & Acceleration Server: Partners
http://www.microsoft.com/isaserver/partners/default.asp

Deployment Guidelines for ISA Server 2004 Enterprise Edition
http://www.microsoft.com/technet/pro...isaserver.mspx
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