Re: Mobile broadband and carriers

[Marc Luethi <netztier bluewin ch>]

On Mon, 2009-01-19 at 19:47 +0200, Janne Boman wrote:

> Nothing gets written to that file when I plug in the phone. The applet
> goes trough the set up dialogs, an option to select my carrier appears
> on the list of available networks, but when I select the mobile carrier
> the connection returns to use the wireless network (or whatever I was
> using at that time...). It's kinda weird, the last log entry is dated
> about 7 hours ago, there's nothing on my current session (a power of in
> the middle).

Try disabling Wireless globally in NM before starting the Mobile
Broadband connection.

I can't get Mobile Broadband to work either on my Ubuntu 8.10 while any
WiFi or LAN connection remains enabled. It results in a very wierd
setup, where the default route remains on the wlan0 interface (or eth0,
for that matter...).

~$ route -n
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric  Iface
10.6.6.6        0.0.0.0         255.255.255.255 UH    0       ppp0
172.20.124.0	0.0.0.0		255.255.255.0	U     2	      wlan0
169.254.0.0     0.0.0.0         255.255.0.0     U     1000    ppp0
0.0.0.0         172.20.124.1    0.0.0.0         UG    0       wlan0


Yet, the Mobile ISP's DNS servers take precedence over the WLAN ones:

marc torch:~$ more /etc/resolv.conf
# Dynamic resolv.conf(5) file for glibc resolver(3) generated by
resolvconf(8)
#     DO NOT EDIT THIS FILE BY HAND -- YOUR CHANGES WILL BE OVERWRITTEN
nameserver 138.188.101.186
nameserver 138.188.101.189
nameserver 172.20.124.1



This can't work, really - what if the Mobile ISP assigns DNS addresses
that are not routeable via the WLAN network?


regards

Marc