Multihomed server, 2 NICS on same subnet

At the moment I have an IIS server and an SQL server. They both have 2 nic's
in. 1 NIC on a 10.0.1.x subnet and the other nic on a 192.168.2.x subnet.
Internet traffic is dedicated to the 192.168.2.x subnet, and internal traffic
on the 10.0.1.x subnet. They both have a default gateway of 192.168.2.254.
However I would like to change the internet gateway router to a 10.0.1.x ip
address, so It can communicate directly with the 10.0.1.x subnet. If I do
this I need to change the 192.168.2.x nics on the server to a 10.0.1.x ip
address. I still need to keep traffic separate. Can I set it up in a way as
to direct traffic from the internet router to a certain network card on the
IIS server, retrieve data from the sql server on the same network card and
send it back to the internet router from this network card.
I have tried putting cards all on the same subnet, but it gets all confused,
and the application fails.

Is this possible, if so how can achieve it.

"Colin Marshall" <(E-Mail Removed)> wrote in message
news:F1631CC9-AC64-4545-AE4E-(E-Mail Removed)...
> However I would like to change the internet gateway router to a 10.0.1.x
ip
> address, so It can communicate directly with the 10.0.1.x subnet. If I do
> this I need to change the 192.168.2.x nics on the server to a 10.0.1.x ip
> address. I still need to keep traffic separate.

No that won't keep the traffic separate, it will just screw everything up.
Forget the whole idea of two Nics. If you run switches instead of Hubs, the
traffic is *already* separate.

> to direct traffic from the internet router to a certain network card on
the
> IIS server, retrieve data from the sql server on the same network card
and
> send it back to the internet router from this network card.
> I have tried putting cards all on the same subnet, but it gets all
confused,
> and the application fails.

Forget it. One Nic!!

--

Phillip Windell [MCP, MVP, CCNA]
www.wandtv.com

Ok all devices are running on a switch, and when I take both servers down to
1 NIC on the 10.0.1.x subnet, same as the internet router, the application
times out for internet users. Internal users dont seem to have problems,
just internet users. Any ideas?

"Phillip Windell" wrote:

>
> "Colin Marshall" <(E-Mail Removed)> wrote in message
> news:F1631CC9-AC64-4545-AE4E-(E-Mail Removed)...
> > However I would like to change the internet gateway router to a 10.0.1.x
> ip
> > address, so It can communicate directly with the 10.0.1.x subnet. If I do
> > this I need to change the 192.168.2.x nics on the server to a 10.0.1.x ip
> > address. I still need to keep traffic separate.
>
> No that won't keep the traffic separate, it will just screw everything up.
> Forget the whole idea of two Nics. If you run switches instead of Hubs, the
> traffic is *already* separate.
>
> > to direct traffic from the internet router to a certain network card on
> the
> > IIS server, retrieve data from the sql server on the same network card
> and
> > send it back to the internet router from this network card.
> > I have tried putting cards all on the same subnet, but it gets all
> confused,
> > and the application fails.
>
> Forget it. One Nic!!
>
> --
>
> Phillip Windell [MCP, MVP, CCNA]
> www.wandtv.com
>
>
>

"Colin Marshall" <(E-Mail Removed)> wrote in message
news:4050A552-9BD9-48EA-849B-(E-Mail Removed)...
> Ok all devices are running on a switch, and when I take both servers down
to
> 1 NIC on the 10.0.1.x subnet, same as the internet router, the application
> times out for internet users. Internal users dont seem to have problems,
> just internet users. Any ideas?

Your Firewall (Proxy, whatever you are using) must properly "publish" the
Application to the Internet. It is probably still trying to use the 192.168
setup that no longer exists. There is also usually much more to adjusting
the firewall than changing the interface IP#,...there are Local Address
Tables, Publishing (static NAT) Setups, Access Rules, etc., that can all be
affected by the address change.

--

Phillip Windell [MCP, MVP, CCNA]
www.wandtv.com