Backtrack IP resets every few minutes

[Guus]

On 06/28/2012 06:54 PM, TopBot . wrote:
>
>
> On Thu, Jun 28, 2012 at 8:56 PM, Guus <gbonnema at xs4all.nl 
> <mailto:gbonnema at xs4all.nl>> wrote:
>
>     On 06/28/2012 04:54 PM, TopBot . wrote:
>>
>>
>>     On Thu, Jun 28, 2012 at 7:28 PM, Guus <gbonnema at xs4all.nl
>>     <mailto:gbonnema at xs4all.nl>> wrote:
>>
>>         On 06/28/2012 04:06 PM, TopBot . wrote:
>>>         Hi, I've been using backtrack 5 since a year on the same
>>>         system and the same lan card. Since yesterday, my IP resets
>>>         every 2-3 minutes and I have to repeatedly add "ifconfig
>>>         eth0 192.168.xx.xx" and "route add default gw 192.168.xx.xx"
>>>         to it to keep it running. Can't seem to find the solution
>>>         after a few google searches. Any one has any idea what's
>>>         wrong? I have dual boot and windows xp is working just fine
>>>         on the same lan.
>>>
>>>         -- 
>>>         TopBot.
>>>
>>>
>>         Hi,
>>
>>         I have had a comparable problem from W7. In my case I had
>>         IPV6 and IPV4 both open, which was causing the problems. As
>>         soon as I had only one open, I had no problem.
>>
>>         I am not saying this is your problem, just something to look at.
>>
>>         The other thing is, that a change in computer behaviour is
>>         always the result of a change in the configuration or
>>         software. You might want to retrace your steps and find out
>>         what you or the system changed in the past few days. Could
>>         easily be an (automated) update somewhere.
>>
>>         P.S. are you posting for Kubuntu or ubuntu? Crossposts are
>>         often not appreciated. I removed the ubuntu address from my post.
>>
>>         -- 
>>         Kind regards, Guus Bonnema.
>>
>>
>>
>>     Here's what the IP resets to (settings before and after the reset
>>     respectively):
>>
>>     root at bt:~# ifconfig -a
>>     eth0      Link encap:Ethernet  HWaddr 00:1a:92:95:81:ca
>>               inet addr:192.168.93.92  Bcast:192.168.93.255
>>     Mask:255.255.255.0
>>               inet6 addr: fe80::21a:92ff:fe95:81ca/64 Scope:Link
>>               UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
>>               RX packets:34391 errors:0 dropped:0 overruns:0 frame:0
>>               TX packets:18367 errors:0 dropped:0 overruns:0 carrier:0
>>     collisions:0 txqueuelen:1000
>>               RX bytes:15099569 (15.0 MB)  TX bytes:4144722 (4.1 MB)
>>     Interrupt:20
>>
>>     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:8203 errors:0 dropped:0 overruns:0 frame:0
>>               TX packets:8203 errors:0 dropped:0 overruns:0 carrier:0
>>     collisions:0 txqueuelen:0
>>               RX bytes:491832 (491.8 KB)  TX bytes:491832 (491.8 KB)
>>
>>     root at bt:~# ifconfig -a
>>     eth0      Link encap:Ethernet  HWaddr 00:1a:92:95:81:ca
>>               inet6 addr: fe80::21a:92ff:fe95:81ca/64 Scope:Link
>>               UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
>>               RX packets:41153 errors:0 dropped:0 overruns:0 frame:0
>>               TX packets:22356 errors:0 dropped:0 overruns:0 carrier:0
>>     collisions:0 txqueuelen:1000
>>               RX bytes:17502811 (17.5 MB)  TX bytes:4992366 (4.9 MB)
>>     Interrupt:20
>>
>>     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:8398 errors:0 dropped:0 overruns:0 frame:0
>>               TX packets:8398 errors:0 dropped:0 overruns:0 carrier:0
>>     collisions:0 txqueuelen:0
>>               RX bytes:502020 (502.0 KB)  TX bytes:502020 (502.0 KB)
>>
>>     ...settings are lost/initialized after the reset I think. My lan
>>     uses switches and a server which is connected to the main server;
>>     our IPs are static on the lan with no restrictions. All my auto
>>     updates are off and I did not change any settings. It just
>>     started to happen since a day ago.
>>
>>     Yes, I posted to both lists (I'm subscribed to both), my bad if
>>     that's not the norm here.
>>
>>     -- 
>>     TopBot.
>     Hmmm,  could you check your logs for messages? Start looking at
>     /var/log/syslog.  I found lots of IP related messages in my
>     syslog. Also dmesg might contain a hint. Try to find out why it
>     resets. Then you have more to go on.
>
>     -- 
>     Kind regards, Guus Bonnema.
>
>
> Couldn't find any reset related messages at the log.
sorry mate, midnight here, not reading for a while now.

What you should find out is whether the problem is one of your machine 
or of a router.
If you are sure Windows does not have the same problem on the same 
machine and with the same ip-configuration (fixed ip number, same 
number), then you should focus on linux.

As far as the logs, if you lose your IP address, there must be something 
in the logs that indicates what is going on.

-- 
Kind regards, Guus Bonnema.
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