Wired networking suddenly stopped on Laptop

[damian]

damian wrote:
> Mark Haney wrote:
>   
>> damian wrote:
>>   
>>     
>>> I've been away using a friends wireless set up (as I have done many 
>>> times before), but I've returned and plugged my laptop into my wired 
>>> network and I can't get emails or any web pages in firefox. I can ping 
>>> the main machine on the network which is always on, but can't seem to do 
>>> much else. Can someone guide me where to look to sort this out?
>>>
>>> It's not a physical problem as the laptop is dual boot and XP can still 
>>> connect fine.
>>>
>>> Looking forward to your thoughts.
>>>
>>> Damian
>>>
>>>     
>>>       
>> What's the output of ifconfig?  What's the default route?  Can you ping 
>> the default gateway?  I'd look at all the network settings and start 
>> pinging devices from host up.  My guess is the default gateway isn't right.
>>     
> damian at D820:~$ ifconfig
> eth0      Link encap:Ethernet  HWaddr 00:15:c5:1b:89:62
>           inet addr:192.168.0.128  Bcast:192.168.0.255  Mask:255.255.255.0
>           inet6 addr: fe80::215:c5ff:fe1b:8962/64 Scope:Link
>           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
>           RX packets:8751 errors:0 dropped:0 overruns:0 frame:0
>           TX packets:6955 errors:0 dropped:0 overruns:0 carrier:0
>           collisions:0 txqueuelen:1000
>           RX bytes:689046 (672.8 KB)  TX bytes:553303 (540.3 KB)
>           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:1314 errors:0 dropped:0 overruns:0 frame:0
>           TX packets:1314 errors:0 dropped:0 overruns:0 carrier:0
>           collisions:0 txqueuelen:0
>           RX bytes:65700 (64.1 KB)  TX bytes:65700 (64.1 KB)
>
> I seem to be able to ping every machine on my system.
> Connection settings seem to be correct:
> Static IP address
> IP: 192.168.0.128
> Subnet: 255.255.255.0
> Gateway: 192.168.0.1 - which is my router.
>
> Still can't connect to the net at all. Any ideas?
>
> Damian
>   
Ahh, found it. My DNS setting was wrong. It had changed to the settings 
in my friends house. Don't know why it didn't automatically change back 
like it has done previously?

Thanks for helping me find where to prod around
Damian