ISP Redundancy

I'm looking for the best way to have an ISP redundancy.

I have a web server with a public IP provided from my
ISP1.

I have registered my domain at www.melbourneit.com.au
(for example)

At delegation details i have added the primary DNS and
Secondary DNS from my ISP1.

The problem is: When the ISP1 has a failure at his
optical fiber, in the last mile or we have troubles with
the Internet for any reason then my Web server is down.

We have another ISP:

How can i do to publish my web server for ISP2 to provide
redundancy?

I have a public ip from ISP2.

My question:

Can i set my delegation details to Primary DNS (ISP1's
Primary DNS) Secondary DNS to ISP2's Primary DNS and
provide to web my server all the time?


Or another way:


Could i put a DNS with public IP and resolve my web
server with multiple public addresses with ip addresses
from multiple ISPs?


Any suggestions?


Thank you.

jeff
Tue Sep 21 06:37:19 CDT 2004

On Mon, 20 Sep 2004 22:46:40 -0700, "lvilleda@hotmail.com"
<anonymous@discussions.microsoft.com> wrote:

>I'm looking for the best way to have an ISP redundancy.
>
>I have a web server with a public IP provided from my
>ISP1.
>
>I have registered my domain at www.melbourneit.com.au
>(for example)
>
>At delegation details i have added the primary DNS and
>Secondary DNS from my ISP1.
>
>The problem is: When the ISP1 has a failure at his
>optical fiber, in the last mile or we have troubles with
>the Internet for any reason then my Web server is down.
>
>We have another ISP:
>
>How can i do to publish my web server for ISP2 to provide
>redundancy?
>
>I have a public ip from ISP2.
>
>My question:
>
>Can i set my delegation details to Primary DNS (ISP1's
>Primary DNS) Secondary DNS to ISP2's Primary DNS and
>provide to web my server all the time?
>
>
>Or another way:
>
>
>Could i put a DNS with public IP and resolve my web
>server with multiple public addresses with ip addresses
>from multiple ISPs?
>
>
>Any suggestions?

You can't do any of this with IIS. You need a load-balancing router
or a fail-over option for your network connections.

Jeff

Seth
Tue Sep 21 19:44:40 CDT 2004

this has nothing to do with IIS, but all you need to do is run BGP routing
to both of your providers. BGP is complicated, so you should get help from
your ISP if you never set it up before.

When you run BGP you can use your IP space that one of your ISP assigned to
you and 'announce' it through the other provider. I have my IP space going
through 3 different ISP's

Seth


"lvilleda@hotmail.com" <anonymous@discussions.microsoft.com> wrote in
message news:389a01c49f9e$5e2e2c70$a301280a@phx.gbl...
> I'm looking for the best way to have an ISP redundancy.
>
> I have a web server with a public IP provided from my
> ISP1.
>
> I have registered my domain at www.melbourneit.com.au
> (for example)
>
> At delegation details i have added the primary DNS and
> Secondary DNS from my ISP1.
>
> The problem is: When the ISP1 has a failure at his
> optical fiber, in the last mile or we have troubles with
> the Internet for any reason then my Web server is down.
>
> We have another ISP:
>
> How can i do to publish my web server for ISP2 to provide
> redundancy?
>
> I have a public ip from ISP2.
>
> My question:
>
> Can i set my delegation details to Primary DNS (ISP1's
> Primary DNS) Secondary DNS to ISP2's Primary DNS and
> provide to web my server all the time?
>
>
> Or another way:
>
>
> Could i put a DNS with public IP and resolve my web
> server with multiple public addresses with ip addresses
> from multiple ISPs?
>
>
> Any suggestions?
>
>
> Thank you.
>
>