On Sun, 24 Oct 2010 09:43:57 -0700 Rich Shepard <[email protected]> wrote:
> I need help from you folks administering Ubuntu systems. On > my wife's laptop only the wireless connections are seen (here > and in the neighborhood). The topmost portion, wired networks, > says there aren't any although I have an ethernet cable > connecting the box to the local router. > > I tried running NetworkManager and was told it's already > running. Next, I tried 'lfconfig -a' and saw eth0 as well as lo > and wlan0. When I ran 'ifup eth0' I saw 'Ignoring unknown > interface eth0=eth0' which makes no sense to me. > > What do I do to have the NetworkManager see the wired > connection when a cat5 cable is plugged in and all that > interface to be used instead of the wirelss one? > > Rich This sounds depressingly familiar. :-( I had this trouble myself, though on a laptop running Fedora, rather than one of the 'buntus. Oddly, it only affected the laptop, and not the desktop, which was running the same version of Fedora and NetworkManager. Get into NetworkManager's preferences, and check IPv6 settings for your wired interface. Dollars to doughnuts it'll be set to Automatic. Set it to Ignore. You may have to restart NetworkManager. The trouble seems to be that if you have NetworkManager set to accept both IPv4 and IPv6 connections, it _requires_ both to be running, or it won't see the interface. If your router is IPv4 only (as mine is) then the IPv6 connection is never made, and the interface never comes up. Hope this helps. --Dale -- Q: What do you get when you cross an elephant with a rock climber? A: You can't, silly. The climber's a Scalar! (sic). _______________________________________________ PLUG mailing list [email protected] http://lists.pdxlinux.org/mailman/listinfo/plug
