Multiple NICs in one server 2

[stussy]

Hi all

Just after some advice on the best way to implement the use of 2 NICs in a server, as I'm out of my depth here!

Windows 2003 server as member server of NT 4 domain (don't ask!) with 2 x Intel gigabit cards. It runs our IP security cameras and also our sophos antivirus. What I would like to do is try and separate/manage the traffic. Will using both cards help?

I can give each card an ip address (we use static ip's here), but this then gives me 'duplicate name' errors in event viewer.

I can tell the camera software which IP address to use as the server, but sophos and the pc's connecting to it go off machine name anyway, so I'm not sure if this will help.

Is it worth turning load balancing on in the properties of the network connections?

Yours confusedly

Mike

 

[Larsdemo]

network load balacing is the only thing you will have any benefits from in this config.

Regards Lars

Network admin for worldwide freight forwarders company.
mcp mcsa\: Messaging mcse -2003

 

[elmurado]

What exactly are you trying to do? increase performance or increase security? Don't want security camera traffic on same segment as AV or something?

The reason it won't work is that both cards are on same subnet so are effectively the same 'machine'. they have same subnets / same NETBIOS name. (ie server.domain.com sort of thing).
are you trying to use the server as an internal router?

 

[stussy]

Thanks for the replies. What I wondered was whether or not I could split the camera traffic off from all other traffic - it's very intensive, and if I were to put anything else on the server I would worry for the performance.

I see what you mean about same subnet/machine, so it looks like a no-go.

Cheers

Mike

 

[nickpark]

> The reason it won't work is that both cards are on same
> subnet so are effectively the same 'machine'.

Then, connect each NIC to a different network/switch.

 

[elmurado]

It's not a no-go but it takes a bit of playing around. I think what you want to do is multi home your machine--here's a link for doing it for a DHCP server but I guess the principle is the same. we did it once for a machine to be able to connect to the net(one nic had one subnet/dns etc etc) whilst the other nic had the internal 192.168.0.1/24 subnet.
The machine was basically a router. Don't have it any more so I can't quite remember what we had to do to make it work. It was a 2003 box.

http://www.microsoft.com/technet/pr...elp/2329ffdb-717f-4d63-a0fd-97e412667b7b.mspx

hth

 

[elmurado]

Here's something else

http://support.microsoft.com/default.aspx?scid=KB;EN-US;Q262397&ID=KB;EN-US;Q262397

Not exactly the same but the net is just another 'network' really--so you get the general gist of it.

 

[elmurado]

I was racking my brains for where I saw areally simple explanation once and my mate put me on to it:

http://www.tcpipguide.com/free/t_NumberofIPAddressesandMultihoming.htm

 

[stussy]

Thanks for the links / ideas - I think this may be a rainy day project, when I haven't got anything else to worry about!

 

[porkchopexpress]

It might work with the cards in a different subnet like elmurado says, it is a red card green card config a bit like a proxy but all your traffic is on the LAN. You could then use vLAN if your switches are capable to run the camera traffic over the same cables as your current network.

 

[irweazel]

either that or you could set up QoS to priorotise the traffic it you have routers managing the network