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Switch and Hub Issues

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by matthewballou

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Hello,
Our company bought new office space which included a number of new switches which were already installed.
We seem to have problems with some people in cubes who use hubs and static IP's on their multiple Linux (RH7.2) or Windows 2K etc systems. When the reboot, the linux machines will report conflicts of "another machine has this ip address" and will just not work. The Windoze machines work, but seem to drop connection and are also unable to receive pings (can send). Any idea if a protocol that was on these switches could be causing issues? Systems directly connected to switch seem to be okay.

8 Baystack 450T 24Ports stacked.
Intel/Shiva VPN/Firewall w/Nat
Various manufacturer of hubs.

Thanks,
Matt

1 reply

by ckilday

Matt,
Sounds like you answered your own question when you said that the systems directly connected to the switch are working ok. That would seem to leave the hubs and the static addressing. Are you running DHCP for the rest of the network? Can you check to see that these devices are not in conflict with either your DHCP range or perhaps the NAT network used by the firewall? Is there any chance the hubs are daisy-chained? This can cause systems to exceed the "repeater rule". Basically, transmissions from the devices on the hubs are exceeding the maximum amount of time allowed for a packet to traverse the network. Just some ideas to get you started. Best wishes,
- ck

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