[vox-tech] eth0 troubles

[Peter Jay Salzman]

Hmmm.  Two things come to mind.  Try this:

   tcpdump -i eth0

to see if you can listen in on any LAN traffic.

Next, try to do a proof of concept.  Pick some IP address that's likely
to be unused.  Say, for example, 192.168.0.5.  Then do:

   ifconfig eth0 down
   ifconfig eth0 192.168.0.5 up

If you don't get an error message, try:

   ping 192.168.0.5

If you still don't get an error message, try pinging another machine on
your LAN like your gateway.

Pete




On Thu 12 Aug 04, 12:30 PM, Karalius, Joseph <Joseph.Karalius at seminis.com> said:
> 
> > -----Original Message-----
> > From: vox-tech-bounces at lists.lugod.org
> > [mailto:vox-tech-bounces at lists.lugod.org]On Behalf Of p at dirac.org
> > Sent: Thursday, August 12, 2004 11:49 AM
> > To: lugod's technical discussion forum
> > Subject: Re: [vox-tech] eth0 troubles
> > 
>         RX bytes:368680 (360.0 KiB)  TX bytes:368680 (360.0 KiB)
> > 
> > This looks perfectly OK.  It looks like you simply didn't 
> > configure your
> > network.  I would say the problem is _not_ hardware.  There doesn't
> > appear to be anything wrong with this device.
> > 
> > Please give the details of how this machine is hooked up to net.
> > 
> > Static IP?  DHCP?  What's your gateway?  Name servers?  You you
> > masquerading?  Or are you hooked directly to the net?
> > 
> 
> This machine is on our LAN with DHCP leased IP addresses.  The DHCP server
> is responding to other machines.  I'm using a tested port and cable.  Still
> no lights in back.
> 
> gateway	207.247.90.2
> nameservers	207.247.182.5
> 		207.247.85.5
> 
> Some more output:
> 
> mmagseq:~# more /etc/network/interfaces
> # Used by ifup(8) and ifdown(8). See the interfaces(5) manpage or
> # /usr/share/doc/ifupdown/examples for more information.
> 
> auto lo eth0
> iface lo inet loopback
> iface eth0 inet dhcp
>         gateway 207.247.90.2
> 
> 
> mmagseq:~# /etc/init.d/networking restart
> Setting up IP spoofing protection: rp_filter.
> Reconfiguring network interfaces...Internet Software Consortium DHCP Client
> 2.0pl5
> Copyright 1995, 1996, 1997, 1998, 1999 The Internet Software Consortium.
> All rights reserved.
> 
> Please contribute if you find this software useful.
> For info, please visit http://www.isc.org/dhcp-contrib.html
> 
> Listening on LPF/eth0/00:0d:56:93:83:34
> Sending on   LPF/eth0/00:0d:56:93:83:34
> Sending on   Socket/fallback/fallback-net
> DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 4
> DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 4
> DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 10
> DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 10
> DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 7
> DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 7
> DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 13
> DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 5
> No DHCPOFFERS received.
> No working leases in persistent database.
> 
> Exiting.
> 
> Failed to bring up eth0.
> done.
> 
> mmagseq:~# route -n
> Kernel IP routing table
> Destination     Gateway         Genmask         Flags Metric Ref    Use
> Iface
> _______________________________________________
> vox-tech mailing list
> vox-tech at lists.lugod.org
> http://lists.lugod.org/mailman/listinfo/vox-tech

-- 
Make everything as simple as possible, but no simpler. -- Albert Einstein
GPG Instructions: http://www.dirac.org/linux/gpg
GPG Fingerprint: B9F1 6CF3 47C4 7CD8 D33E 70A9 A3B9 1945 67EA 951D