Gateway Metrics

Hi, probably a nice easy one for most of you guys....

I have 2 ADSL connections and am planning on having some failover on a
Server by using Default Gateway metrics. Single NIC. This is Server 2003 Std,
I plan to add a second gateway and set the metric to 20, the first metric
will be 10 as this is going to be primary. If the ADSL connected to Gateway
10 goes down 20 will hopefully be available. However my question is will this
work? does the router with the IP address of metric 10 actually need to be
dead before this works or will it see that it can not route beyond the
gateway on 10 because the ADSL is down and then start sending traffic out on
metric 20 ?

Thanks for that Bob, it did look too simple to work. I already have metric 10
loadbalanced between two connections. I just wanted to add a third for some
more redundancy...

"Bob Lin (MS-MVP)" wrote:

> That doesn't work except you write a small program to remove the metric 10
> gateway when it doesn't work. The option is having a dual WAN router. These
> search results may help.
>
> a.. What's Dual WAN or Load Balance Router
> A Dual WAN router or called Load Balance Router allows a router to use
> multiple paths to a destination when forwarding packets. With the ability to
> connect ...
> http://www.howtonetworking.com/whati...wanrouter1.htm - Similar pages
>
> a.. Two gateways for redundancy
> Have a Dual WAN router like Cisco 1841 that can handle two gateways.
> Or refer to this link: What is Dual WAN or Load Balance Router? ...
> www.howtonetworking.com/Routers/2gateways.htm
>
>
> --
> Bob Lin, MS-MVP, MCSE & CNE
> Networking, Internet, Routing, VPN Troubleshooting on
> http://www.ChicagoTech.net
> How to Setup Windows, Network, VPN & Remote Access on
> http://www.HowToNetworking.com
>
>
> "Bob Murray" <Bob (E-Mail Removed)> wrote in message
> news:EC28727B-12F7-4E28-97D8-(E-Mail Removed)...
> > Hi, probably a nice easy one for most of you guys....
> >
> > I have 2 ADSL connections and am planning on having some failover on a
> > Server by using Default Gateway metrics. Single NIC. This is Server 2003
> > Std,
> > I plan to add a second gateway and set the metric to 20, the first metric
> > will be 10 as this is going to be primary. If the ADSL connected to
> > Gateway
> > 10 goes down 20 will hopefully be available. However my question is will
> > this
> > work? does the router with the IP address of metric 10 actually need to be
> > dead before this works or will it see that it can not route beyond the
> > gateway on 10 because the ADSL is down and then start sending traffic out
> > on
> > metric 20 ?
>