[Fedora] Re: FC3 install - no network

[Ashley M. Kirchner]

Alexander Dalloz wrote:

>Which NIC, which kernel module?
>
    From /var/log/dmesg:    3c905 Boomerang 100BaseTx
    From lsmod:    3c59x

>"route" hangs when it tries to resolve the name and can't. "route -n"
>will print out the routes immediately, right?
>
    Right.

>Is your /etc/host file properly formatted and has a 127.0.0.1/localhost
>entry line? /etc/resolv.conf is proper too?
>
    /etc/hosts has not been touched and it currently contains:

    127.0.0.1       localhost.localdomain localhost


    /etc/resolv.conf contains the proper nameservers.

>If yes, do you have router equiment? Maybe
>
    Physically, nothing's changed.  The system is still hooked onto the 
same switch, same port, same everything.  So why would it work and not 
after a re-install?

># 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.
>
    No change.


    Now the interesting thing is, I can configure eth1, going to a 
completely different network and switch, and it works fine.  However, 
eth0 refuses to work.  Everything says it should.  It comes up, the log 
shows that it comes up and has a full-duplex link, and the switch 
acknowledges that it's live.  Yet, nothing goes through.  iptables's 
been shut off, and just about everything else has been shut off, in case 
it's something blocking access, but no dice.  It simply won't work.

    This is the same card I just used prior to the upgrade to push a 
full backup of the system through to a different machine, so I know it 
works fine.


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