Linux - NetworkingThis forum is for any issue related to networks or networking.
Routing, network cards, OSI, etc. Anything is fair game.
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I am having and issue w/ RH 7.3 and RH 8.0 on a P4 Dell. I have 1 box that has 2 nics and one box that has 3 nics. I am using a X-over cable to go from NIC to NIC. The cable runs from ETH1 on Box 1 to eth2 on box 2.
Whenever I ping 192.168.200.1 from box 1 I get destination host unreachable. Looking at the back of the box, it is transmitting from eth0 not eth1 like it should.
Whenever I ping 192.168.200.2 from box 2 I get destination host unreachable. Looking at the back of the box, it is transmitting from eth1 not eth2 like it should.
These are all 3com NICS and have verified operability in other machines, and have verified cables to be good. Any thoughts?
Distribution: Redhat v8.0 (soon to be Fedora? or maybe I will just go back to Slackware)
Posts: 857
Rep:
try taking all the other nic's down with ifconfig and see what it does when you ping then. If that works... start bringing them back up one at a time, pinging between each one.
I've tried that. The only way i get any communications is to remove all the nics out of the machine and use only the built in ethernet port on the motherboard.
Howdy,
Are they 3com 590 (vortex) cards ?
I have terrible trouble getting them to talk to each other. I hacked together a noddy script for my RH 6.2 box that started & stopped the networking - look for the net or network [stop|start] that init runs as the box comes up / goes down (sorry can't remember proper path) . I eventually ran everything through a hub with a 3rd machine hanging off it that had a 3c509 in it just so the 590's would see something on the lan and initialise properly.
Everything looks right - but you always get destination host unreachable. Have you tried pinging at the ethernet level instead of IP by specifying the mac address ? I think it is called arping under linux. Do a man arping & see if u have it installed. Otherwise google for the download site.
HTH
Ian
This is a temp setup so you'll have to add the info to the routing config file on the machines for something that'll last after a reboot.... Hopefully this works for you and I haven't forgotten anything. Let me know if everything works ok.
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