Can't get University network working with my Gentoo.

nosatalian · Tux's lil' helper Joined: 09 Apr 2004 Posts: 98

When I first came to school here, my existing eth0 worked fine and I got on the internet. Now I can't connect.

Interestingly, I can connect in windows, so I know my MAC address is registered properly.

Furthermore when I boot off a live CD it works by default. The network has dhcp, but I tried using ifconfig to show my ip, dns, and netmask from the livecd but manually setting those in /etc/conf.d/net does not work.

I also have tried copying the /etc/init.d/net.eth0 from the livecd and the /etc/conf.d/net from the live cd. But no success. Eth0 appears to go up, but I cannot ping any domains. Also, ifconfig shows my ip address correctly but I have no packets sucessful- all errors.

Let me add that the module for my laptop "tg3" is listed in lsmod, and I recompiled the kernel and modules to make sure that it had not gotten corrupted or anything.

Anyone have any suggestions?

naitram · n00b Joined: 22 Aug 2003 Posts: 18 Location: California

since you can't ping any domains, I'd check your dns servers (/etc/resolv.conf) against the ones in windows (start>run>cmd>ipconfig /all)
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TJNII · l33t Joined: 09 Nov 2003 Posts: 648 Location: for(;;);

Try checking your resolv.conf against the one the livecd detects. That was my problem when I came back to ISU.

[edit]
Darn. naitram beat me.

[/edit]

nosatalian · Tux's lil' helper Joined: 09 Apr 2004 Posts: 98

I copied settings from windows- and also tried just using the resolv from the livecd, but I got nothing. Is there anything else it could possibly be? Do I need hotpluging support? Cause I removed it a while ago. Also I had been trimming my kernel, is their anything I need specifically enabled other than the really obvious?

Furthermore, during boot up, I see eth0 start successfully (although it does not show what ip it got assigned on the screen) but if I manually restart it, it fails after that.

I tried the command "dhcpcd eth0" and no dice either. I have an eth1 that I am not using but used to be (for wireless) is it possible that requests are trying to default to that and then failing?

TJNII · l33t Joined: 09 Nov 2003 Posts: 648 Location: for(;;);

What error does it give you when restart fails? Is there anything interesting in dmesg?

naitram · n00b Joined: 22 Aug 2003 Posts: 18 Location: California

Try pinging out using IP's, maybe for the gateway of your uni, or for a computer on the local network. If you can't ping by ip, then you know there's an issue. If that works, try pinging your dns servers. If the ping for local systems and for your dns servers works, then check and make sure that the info you're being fed from the dhcp servers is correct. And then i dunno what else to suggest.
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gnuageux · Veteran Joined: 17 Apr 2004 Posts: 1201

Can you post the output from: ifconfig eth0 & route -n. Are you able to ping your gw successfully without packet loss?
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Genone · Posted: Thu Aug 26, 2004 11:59 am Post subject:

Sure that eth0 is the correct device? Maybe it's the wireless, the names are assigned based on which driver is loaded first, so it could be that your kernel uses a different order than the livecd kernel.