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Old 04-04-2008, 07:11 AM   #1
prometheusracer
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Registered: Dec 2006
Location: Southampton, UK
Distribution: Mint 7, running on a 1.6GHz centrino duo, 2048MB, 80GB, NVidia 7300 512MB laptop
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No wired networking, Ubuntu7.10, RTL8111/8168B - Software problem.


Hi,

I'm running Gutsy on an Asus A6Jc laptop, with RTL8111/8169B gigabit ethernet card and ipw3945ABG wireless card, using Gnome and (at present) the Network Manager applet. Up until a few days ago, everything was working fine - it booted up, and if the ethernet lead (to a belkin router) was plugged in, it would use that to access the network, otherwise it would connect wirelessly (to the same router).
Now, upon bootup, its asking me for my keyring pwd (so it can connect to the wireless), and in the network manager menu, the wired network option is greyed out. If I unplug and re-plug the ethernet cable, the wired option comes back (and network manager automagically connects to it) but I get no network of internet access. If I use the wireless, all is fine.
Hardware wise, nothings changed, and the router 'sees' both my wired connection and wireless (and logs no error messages). I also get an IP address (DHCP) when I try to connect with the cable, so I'm pretty certain that its a software problem.

Here's the output of ifconfig when I'm connected wirelessly -
Code:
br0       Link encap:Ethernet  HWaddr 00:17:31:C1:8E:29  
          inet addr:192.168.1.2  Bcast:192.168.1.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:95 errors:0 dropped:0 overruns:0 frame:0
          TX packets:361 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:9584 (9.3 KB)  TX bytes:22321 (21.7 KB)

eth0      Link encap:Ethernet  HWaddr 00:17:31:C1:8E:29  
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:102 errors:0 dropped:0 overruns:0 frame:0
          TX packets:462 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:11941 (11.6 KB)  TX bytes:37693 (36.8 KB)
          Interrupt:16 Base address:0xa000 

eth1      Link encap:Ethernet  HWaddr 00:13:02:4B:22:F6  
          inet addr:192.168.2.3  Bcast:192.168.2.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:18 errors:8 dropped:1195 overruns:0 frame:0
          TX packets:30 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:5026 (4.9 KB)  TX bytes:10375 (10.1 KB)
          Interrupt:17 Base address:0xa000 Memory:fe1ff000-fe1fffff 

lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.0.0.0
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:241 errors:0 dropped:0 overruns:0 frame:0
          TX packets:241 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:20661 (20.1 KB)  TX bytes:20661 (20.1 KB)

vmnet1    Link encap:Ethernet  HWaddr 00:50:56:C0:00:01  
          inet addr:172.16.23.1  Bcast:172.16.23.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:69 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)

vmnet8    Link encap:Ethernet  HWaddr 00:50:56:C0:00:08  
          inet addr:172.16.172.1  Bcast:172.16.172.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:70 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)
(vmnet1,vmnet8 and br0 were created aaaaaages ago by vmware server)
And here is ifconfig when I'm ''connected'' by cable -
Code:
br0       Link encap:Ethernet  HWaddr 00:17:31:C1:8E:29  
          inet addr:192.168.1.2  Bcast:192.168.1.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:53 errors:0 dropped:0 overruns:0 frame:0
          TX packets:346 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:4731 (4.6 KB)  TX bytes:21691 (21.1 KB)

eth0      Link encap:Ethernet  HWaddr 00:17:31:C1:8E:29  
          inet addr:192.168.2.7  Bcast:192.168.2.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:60 errors:0 dropped:0 overruns:0 frame:0
          TX packets:402 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:6476 (6.3 KB)  TX bytes:32838 (32.0 KB)
          Interrupt:16 Base address:0xa000 

lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.0.0.0
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:211 errors:0 dropped:0 overruns:0 frame:0
          TX packets:211 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:17988 (17.5 KB)  TX bytes:17988 (17.5 KB)

vmnet1    Link encap:Ethernet  HWaddr 00:50:56:C0:00:01  
          inet addr:172.16.23.1  Bcast:172.16.23.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:69 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)

vmnet8    Link encap:Ethernet  HWaddr 00:50:56:C0:00:08  
          inet addr:172.16.172.1  Bcast:172.16.172.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:70 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)
Note no eth1 anymore, is this normal? I haven't noticed it previously, and the wireless card isn't turned off when I choose cable...

Software wise, the day before all this started happening (ie, the boot before this started) I had updated and installed some programs, and also completely removed (including config files) some others, although none were related to networking stuff. I can't remember which ones though... are there any logs anywhere that'll tell me?

So, any ideas? If its gonna be hassle (or if I can't be bothered) I'll just do a fresh install of Ubuntu - I've not got much on here I especially want.

Many thanks, Matt
 
Old 04-05-2008, 07:50 PM   #2
arno
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Registered: Jul 2004
Location: Netherlands
Distribution: fedora core 8, suse 10.3, ubuntu 7.10, kamikaze 7.09
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I have had the same problem, my problem was that is did not happen all of the time, so i did not have a sollution for the problem.

I use
route -n
to find out which vmware network drivers has the UG label, then i disabled that one using
sudo ifconfig vmnetX down
request new ip by
sudo /etc/init.d/networking restart
and restarted vmware driver
sudo ifconfig vmnetX up
 
  


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