FC3 install - no network
Alexander Dalloz
ad+lists at uni-x.org
Tue Dec 21 23:21:49 UTC 2004
Am Di, den 21.12.2004 schrieb Ashley M. Kirchner um 23:30:
> I just did a fresh installation of FC3 on a system that used to run
> RH9. Installation went fine, system came up ... except the network
> won't work. Now, I checked all the files _I think_ needs to be checked,
> and they all appear to be okay: /etc/sysconfig/network,
> /etc/sysconfig/network-scripts/ifcfg-eth0 and ifcfg-lo
Which NIC, which kernel module?
> All the values and options are the same as what they were on the old
> setup (I made a backup of those files, so I'm comparing them now.) Yet,
> the network simply won't work. Checking 'ifconfig' everything appears
> to be fine. Running 'route' on the other hand hangs for a bit before
> finally giving me the last line:
>
> # route
> Kernel IP routing table
> Destination Gateway Genmask Flags Metric Ref
> Use Iface
> 206.168.220.48 * 255.255.255.248 U 0
> 0 0 eth0
> [ ... here it hangs for a while before the last line ... ]
> default 206.168.220.49 0.0.0.0 UG 0
> 0 0 eth0
"route" hangs when it tries to resolve the name and can't. "route -n"
will print out the routes immediately, right?
> Now, on any of my other systems (still running either RH7.3/9 or
> FC1, when I run 'route', it also displays a line for the loopback. It's
> not showing up on this machine (though the loopback does show up in
> ifconfig.) So, someone please shine some light here...what have I
> forgotten? Why in the world would it not work if everything is setup
> the same?
There is no loopback route with kernel 2.6. This is normal.
Is your /etc/host file properly formatted and has a 127.0.0.1/localhost
entry line? /etc/resolv.conf is proper too? If yes, do you have router
equiment? Maybe
# Controls ECN
net.ipv4.tcp_ecn = 0
# Controls TCP window scaling
net.ipv4.tcp_window_scaling = 0
is needed in your /etc/sysctl.conf (one or both) and "sysctl -p" to be
executed then.
> -- A
Alexander
--
Alexander Dalloz | Enger, Germany | new address - new key: 0xB366A773
legal statement: http://www.uni-x.org/legal.html
Fedora GNU/Linux Core 2 (Tettnang) on Athlon kernel 2.6.9-1.6_FC2smp
Serendipity 00:11:33 up 11 days, 18:52, load average: 1.55, 1.58, 1.61
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