[Bug 212365] Re: Cannot activate network interface in kubuntu after switching to manual configuration

Christopher Yee Mon christopher.yeemon at gmail.com
Thu Apr 10 05:37:18 UTC 2008 

Here is cat /etc/network/interfaces, ifconfig and the ping of the lan
and yahoo before turning on manual configuration:

auto lo
iface lo inet loopback
address 127.0.0.1
netmask 255.0.0.0


eth0      Link encap:Ethernet  HWaddr 00:1A:92:B3:70:CC  
          inet addr:192.168.1.103  Bcast:192.168.1.255  Mask:255.255.255.0
          inet6 addr: fe80::21a:92ff:feb3:70cc/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:1336386 errors:0 dropped:0 overruns:0 frame:0
          TX packets:798237 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:1788255530 (1.6 GB)  TX bytes:96982579 (92.4 MB)
          Interrupt:18 

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:1073 errors:0 dropped:0 overruns:0 frame:0
          TX packets:1073 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:35283 (34.4 KB)  TX bytes:35283 (34.4 KB)

PING 192.168.1.1 (192.168.1.1) 56(84) bytes of data.
64 bytes from 192.168.1.1: icmp_seq=1 ttl=64 time=0.952 ms
64 bytes from 192.168.1.1: icmp_seq=2 ttl=64 time=0.781 ms
64 bytes from 192.168.1.1: icmp_seq=3 ttl=64 time=0.742 ms
64 bytes from 192.168.1.1: icmp_seq=4 ttl=64 time=1.10 ms
64 bytes from 192.168.1.1: icmp_seq=5 ttl=64 time=1.08 ms

--- 192.168.1.1 ping statistics ---
5 packets transmitted, 5 received, 0% packet loss, time 4014ms
rtt min/avg/max/mdev = 0.742/0.932/1.105/0.154 ms

PING yahoo.com (216.109.112.135) 56(84) bytes of data.
64 bytes from w2.rc.vip.dcn.yahoo.com (216.109.112.135): icmp_seq=1 ttl=54 time=18.2 ms
64 bytes from w2.rc.vip.dcn.yahoo.com (216.109.112.135): icmp_seq=2 ttl=54 time=14.8 ms
64 bytes from w2.rc.vip.dcn.yahoo.com (216.109.112.135): icmp_seq=3 ttl=54 time=19.7 ms
64 bytes from w2.rc.vip.dcn.yahoo.com (216.109.112.135): icmp_seq=4 ttl=54 time=14.4 ms
64 bytes from w2.rc.vip.dcn.yahoo.com (216.109.112.135): icmp_seq=5 ttl=54 time=14.5 ms

--- yahoo.com ping statistics ---
5 packets transmitted, 5 received, 0% packet loss, time 4008ms
rtt min/avg/max/mdev = 14.485/16.376/19.773/2.204 ms


Here is cat /etc/network/interfaces, ifconfig and the ping of the lan and yahoo after turning on manual configuration:

auto lo
iface lo inet loopback
address 127.0.0.1
netmask 255.0.0.0


iface eth0 inet static
address 192.168.1.103
netmask 255.255.255.0
gateway 192.168.1.1

eth0      Link encap:Ethernet  HWaddr 00:1A:92:B3:70:CC  
          inet6 addr: fe80::21a:92ff:feb3:70cc/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:42 errors:0 dropped:0 overruns:0 frame:0
          TX packets:6 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:23880 (23.3 KB)  TX bytes:492 (492.0 b)
          Interrupt:18 

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:1073 errors:0 dropped:0 overruns:0 frame:0
          TX packets:1073 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:35283 (34.4 KB)  TX bytes:35283 (34.4 KB)



Here is cat /etc/network/interfaces, ifconfig and the ping of the lan and yahoo after turning roaming mode back on using the network-admin tool from either K Menu->System->Network in KDE or System->Administration->Network from Gnome:

auto lo
iface lo inet loopback
address 127.0.0.1
netmask 255.0.0.0



eth0      Link encap:Ethernet  HWaddr 00:1A:92:B3:70:CC  
          inet addr:192.168.1.103  Bcast:192.168.1.255  Mask:255.255.255.0
          inet6 addr: fe80::21a:92ff:feb3:70cc/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:11853 errors:0 dropped:0 overruns:0 frame:0
          TX packets:10742 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:12246098 (11.6 MB)  TX bytes:1700206 (1.6 MB)
          Interrupt:18 

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:956 errors:0 dropped:0 overruns:0 frame:0
          TX packets:956 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:31890 (31.1 KB)  TX bytes:31890 (31.1 KB)

PING 192.168.1.1 (192.168.1.1) 56(84) bytes of data.
64 bytes from 192.168.1.1: icmp_seq=1 ttl=64 time=0.969 ms
64 bytes from 192.168.1.1: icmp_seq=2 ttl=64 time=0.821 ms
64 bytes from 192.168.1.1: icmp_seq=3 ttl=64 time=0.761 ms
64 bytes from 192.168.1.1: icmp_seq=4 ttl=64 time=0.766 ms
64 bytes from 192.168.1.1: icmp_seq=5 ttl=64 time=0.725 ms

--- 192.168.1.1 ping statistics ---
5 packets transmitted, 5 received, 0% packet loss, time 4077ms
rtt min/avg/max/mdev = 0.725/0.808/0.969/0.089 ms

PING yahoo.com (66.94.234.13) 56(84) bytes of data.
64 bytes from w2.rc.vip.scd.yahoo.com (66.94.234.13): icmp_seq=1 ttl=50 time=93.9 ms
64 bytes from w2.rc.vip.scd.yahoo.com (66.94.234.13): icmp_seq=2 ttl=51 time=92.0 ms
64 bytes from w2.rc.vip.scd.yahoo.com (66.94.234.13): icmp_seq=3 ttl=51 time=91.0 ms
64 bytes from w2.rc.vip.scd.yahoo.com (66.94.234.13): icmp_seq=4 ttl=51 time=107 ms
64 bytes from w2.rc.vip.scd.yahoo.com (66.94.234.13): icmp_seq=5 ttl=52 time=91.7 ms

--- yahoo.com ping statistics ---
5 packets transmitted, 5 received, 0% packet loss, time 4012ms
rtt min/avg/max/mdev = 91.006/95.337/107.900/6.357 ms


As the output shows interfaces is empty and ifconfig has the dhcp address when roaming mode is on. Once manual configuration is turned on as described in the steps, interfaces has the address specified in the manual configuration but ifconfig shows no address.

-- 
Cannot activate network interface in kubuntu after switching to manual configuration
https://bugs.launchpad.net/bugs/212365
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