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I have a weird problem I can't solve. I have several computers, two with Xubuntu 9.10. One of them, acting as a media server, has stopped to work when it comes to external networking. I can do for example:

ping google.com

Which gives me an IP adress back, like:

name@Media:/etc$ ping google.com
PING google.com (66.102.9.147) 56(84) bytes of data.

That tells me it reaches the DNS? But I get no response at all. If I ping a local computer all works fine. I can also reach the computer via SSH without any problems. I have always used NetworkManager, but now I uninstalled it and made the settings manually like this:

/etc/network/interfaces

auto lo
iface lo inet loopback

auto eth0

iface eth0 inet static
address 192.168.1.52
netmask 255.255.255.0
network 192.168.1.0
broadcast 192.168.1.255
gateway 192.168.1.1

Still no luck. I have no specific settings for this one in my router, and all the other computers, including my Windows laptop works fine. This is very annoying since I can't even do an update or anything..

The output from ifconfig looks like this:

  eth0      Link encap:Ethernet  HWaddr 00:24:1d:9f:10:89
          inet addr:192.168.1.52  Bcast:192.168.1.255  Mask:255.255.255.0
          inet6 addr: fe80::224:1dff:fe9f:1089/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:15410 errors:0 dropped:0 overruns:0 frame:0
          TX packets:2693 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:1167398 (1.1 MB)  TX bytes:694973 (694.9 KB)
          Interrupt:27 Base address:0xe000

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:2150 errors:0 dropped:0 overruns:0 frame:0
          TX packets:2150 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:143456 (143.4 KB)  TX bytes:143456 (143.4 KB)

The output from route -n like this:

Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
192.168.1.0     0.0.0.0         255.255.255.0   U     0      0        0 eth0
169.254.0.0     0.0.0.0         255.255.0.0     U     1000   0        0 eth0
0.0.0.0         192.168.1.1     0.0.0.0         UG    100    0        0 eth0

I do not know where the adress starting with 169.254 comes from. Could that be a part of the problem?

I am hoping for some assistance since I'm totally stuck here.

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2 Answers 2

Tracepath gives me this:

user@Media:/etc$ tracepath google.com
 1:  Media (192.168.1.52)                                   0.126 ms pmtu 1500
 1:  Router (192.168.1.1)                                   1.209 ms
 1:  Router (192.168.1.1)                                   1.010 ms
 2:  no reply
 3:  no reply
 4:  no reply

It seems like the router anyway? Or how am I supposed to understand this?

Sorry, I got some formatting issues here. It was very hard to read the code when I used the comment fielt, no formatting options. So I answer my self instead. Hope it's OK.

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welcome to Super User! this is not a traditional threaded forum so you need to add info like this by editing your original post. use the little gray "edit" link at the bottom of the post. –  quack quixote Feb 25 '10 at 14:58

Try tracepath www.google.com and see what that gives you; you should see where the connection breaks down.

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