On Sat, 2009-11-14 at 11:13 -0800, Denis Heidtmann wrote: > Trying to understand what happened to my network on Sep 21, 2009, and > actions to take if it happens again. > > Background: Running Ubuntu 9.04 with NetworkManager > (http://projects.gnome.org/NetworkManager/) > DSL modem. No wireless. > > On 9/21/09 all network communication failed. I power cycled the modem > to no effect. My son changed /etc/network/interfaces from: > auto lo > > iface lo inet loopback > > > to: > auto lo > > iface lo inet loopback > > > > auto eth0 > > iface eth0 inet dhcp > > > After restarting the network was restored, but the NetworkManager > applet which displays the network status on the task bar shows the > network as not functional. > > Since this occurrence I have had two more times that the network > failed. In both cases after shutting down for an hour or so then > restarting the network came back up functional. During one of these > most recent failures, I looked at a GUI which displays, among other > things, Netstat outputs. > > When it had failed: > > > > Destination Gateway Netmask Interface > > 169.254.0.0 0.0.0.0 255.255.0.0 eth0 > > 0.0.0.0 0.0.0.0 0.0.0.0 eth0 > > fe80:: :: 64 eth0 > > ...snip... > > When it was functional: > > > > Destination Gateway Netmask Interface > > 192.168.0.0 0.0.0.0 255.255.255.0 eth0 > > 169.254.0.0 0.0.0.0 255.255.0.0 eth0 > > 0.0.0.0 192.168.0.1 0.0.0.0 eth0 > > fe80:: :: 64 eth0 > > ...snip... > > > The spontaneous fixes since the first occurrence leads me to consider > the possibility that Evan's edit of /etc/network/interfaces did not > fix the issue, but only served to break the NetworkManager applet. > > I am interested in having a bag of diagnostic tricks at the ready when > it happens again. High on my list of suspects is the DSL modem. I am > also interested in restoring the NetworkManager applet to function. > > Suggestions? > > -Denis
169.254.xx.xx is NOt a good IP address.. HTH Linux-yug _______________________________________________ PLUG mailing list [email protected] http://lists.pdxlinux.org/mailman/listinfo/plug
