I setup two workstations and each one with two NICs with two different IPs and subnets. Both of server and client run at them. When I include both NICs in the server configuration file there is sometimes communication failure. when I remove one of them anything is ok. why?

 

what OS are you using?

 

> what OS are you using?

Windows 2000.

 

Are they both identical...from the same manufacturer?
I have had communication issues in the past that seemed to be resolved by making sure that the 2 NIC's were both the same.

Cheers

Gerald Beaudoin

 

hi there,

could you please run the follow command line for each interface and send me the output :

netstat -nr

netstat -e

they are severals posibilitis : routing problems, phisical damage in NIC, etc

regards,
Jairo

 

They are both identical and they are from the same manufacturer.

 

Hello

> When I include both NICs in the server configuration file there is sometimes communication <

That's get all and nothing, I suggest nothing

what server? what is running on this server? Which configuration file? Could you post it here (at least the card configs)

On workstation which software runs as client?

There's active devices (managed switches, routers, gateways ..) between server and clients?

My personal idea it that (apart the different subnets and IP addresses of the NICs) the client, and the server else, are listening and talking on both NICs: windows hasn't efficient way to route requests to a particular NIC, thus there's something like a 'round-robin' to route packets to NICs: probably that the entire application client-server gets in 'loop' between the NICs: you can easily see it because the NICs ACT leds are blinking fast even there's not reason (in other words: when server has configured two NICs the ACT leds are blinking more fast that when is configured only one)

My entire post is written around my personal experience (little) and a (very little) information that you have posted in the thread.

Regards
Gabriele

BTW: you can easily contact me by checking over the net my nickname (that's my real name)