Curious problem with Danya 16-port hub

[HarveyFish]

I rescued this rackmount hub and it's sister from the trash heap at work. When I plug the cat5 in from my cable modem to the uplink I get a green light and can share the connection with other computers.

Recently I installed a Linux Router/Firewall and wanted to place it between the cable modem and router. I was able to ping the Internet from the router but was not getting a green light at the hub. I then plugged a crossover cable in and ran it directly to my desktop PC. Success.

I've tried different cables with no success. Tried different cards with no success. It definitely seems to be a problem with the hub, but I don't understand why it would take the uplink from the cable modem but not the NIC. Can anyone explain this to me? Is there something I should be doing? Is there something I'm missing here? Intel bought the manufacturer out four years ago and documentation is scarce.

 

[me19562]

U already check if the NIC is working fine in the Linux Box?

 

[HarveyFish]

Yeah, I've checked the NIC's and they're all good. And with the crossover cable going from the Linux firewall to the Windows PC working fine then that verifies that the Linux NIC is good.

I cannot figure out why it won't accept a signal from the NIC to the hub...*grumble*.

I just unplugged the cat5 from the cable modem and ran it from my desktop PC to the hub port 1 and got a green light. To the uplink gave me nothing. But I still get a green if I take the same cable and go from my cable modem to the uplink OR the hub port 1.

Maybe I'm not understanding how these things work? Or maybe I need to dump these things and forget about them.

 

[me19562]

ok the cable u r using from the linux box to the hub is a crossover or straight?