[ubuntu-za] Skype via 3G

[Charl Wentzel]

On 19/03/2013 22:17, Hannes Coetzee wrote:
> On 19/03/2013 16:24, Charl Wentzel wrote:
>> I'm getting a really weird problem. Most of the time I'm connected to 
>> my office network via WiFi, but when I'm out I use my 3G stick. In 
>> both cases Internet, email, etc. works as expected, except for Skype. 
>> When connecting via 3G, my Skype won't go online.
> I remember something like this back in the days when KDE's network 
> manager wasn't complete. Could you post the output of these commands 
> (run in terminal) when your 3G is connected?
>
> ifconfig
eth0 Link encap:Ethernet HWaddr 00:1b:38:36:6d:6c
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)

lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:998 errors:0 dropped:0 overruns:0 frame:0
TX packets:998 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:82512 (82.5 KB) TX bytes:82512 (82.5 KB)

usb0 Link encap:Ethernet HWaddr 02:ec:6d:60:56:98
inet addr:105.247.81.155 Bcast:105.247.81.155 Mask:255.255.255.255
inet6 addr: fe80::ec:6dff:fe60:5698/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:9289 errors:0 dropped:0 overruns:0 frame:0
TX packets:6414 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:10384670 (10.3 MB) TX bytes:3433108 (3.4 MB)

virbr0 Link encap:Ethernet HWaddr 3e:b5:ae:0e:c4:ad
inet addr:192.168.122.1 Bcast:192.168.122.255 Mask:255.255.255.0
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)

wlan0 Link encap:Ethernet HWaddr 00:1b:77:61:98:b3
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
> route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
0.0.0.0 0.0.0.0 0.0.0.0 U 0 0 0 usb0
169.254.0.0 0.0.0.0 255.255.0.0 U 1000 0 0 usb0
192.168.122.0 0.0.0.0 255.255.255.0 U 0 0 0 virbr0
> cat /etc/resolve.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 127.0.0.1

I'm not sure if any of this helps, as everything seems to work except 
for Skype. I'm doing e-mail, web-surfing, dropbox, ssh to customers, 
etc. If the problem was in my network configuration, than at least some 
of the other services should be affected as well. I also don't have a 
firewall running on my laptop either. I'm a bit baffled by this 
especially since Skype has a reputation for being especially hard to 
block as it finds ways around firewalls, now Skype is the only thing not 
working! I'm pretty certain there are some network managers eagerly 
wanting to find out what the secret is. :-)

Regards
Charl