My moms laptop, running Kubuntu 11.10, will for some reason not connect to the interwebs anymore. ping 8.8.8.8 gives "network is unreachable". Ethernet cable definitely works though.
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Re: Network is unreachable
A bit more information would be really useful... you've said it's using a wired, rather than a wireless connection (or am I misunderstanding your post, and you're saying it works when wired, but not when wireless?)... but to what does that ethernet cable connect? A router? A cable or dsl 'modem'? A dedicated computer running a squid proxy?
Playing the odds, I'm going to guess that it's via some kind of SOHO router.
You've established that the laptop can't reach an external network, but is it able to reach the router's default gateway address, either by pinging, or using a browser to access its admin web interface?sigpic "Let us think the unthinkable, let us do the undoable, let us prepare to grapple with the ineffable itself, and see if we may not eff it after all." -- Douglas Adams -
Re: Network is unreachable
> you've said it's using a wired, rather than a wireless connection
Indeed. And if I connect my own laptop to this cable, it works fine.
> but to what does that ethernet cable connect?
A switch. And that is connected to something owned by my landlord, who got some login-to-access internet thing on some ip starting with 172. I can't reach that with this laptop though (while I can with my own, so I doubt the issue lies there).
> A bit more information would be really useful...
Sure. But I'm not a networking guy, so I have no further info.Comment
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Re: Network is unreachable
On the laptop with the connectivity problem, (while it's connected via the ethernet cable to the switch) could you open a Konsole window and enter the following command:
And post the resulting output.Code:sudo lshw -C network
Also, the command:
And the output from that.Code:ifconfig -a
sigpic "Let us think the unthinkable, let us do the undoable, let us prepare to grapple with the ineffable itself, and see if we may not eff it after all." -- Douglas Adams Comment
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Re: Network is unreachable
While you have that terminal open let's see the results of
Code:ifconfig -a
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Re: Network is unreachable
kris@krislaptop:~$ sudo lshw -C network
[sudo] password for kris:
*-network
description: Ethernet interface
product: 82562GT 10/100 Network Connection
vendor: Intel Corporation
physical id: 19
bus info: pci@0000:00:19.0
logical name: eth0
version: 03
serial: 00:1f:29:9b:0e:02
size: 100Mbit/s
capacity: 100Mbit/s
width: 32 bits
clock: 33MHz
capabilities: pm msi bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=e1000e driverversion=1.3.10-k2 duplex=full firmware=1.1-2 ip=192.168.1.100 latency=0 link=yes multicast=yes port=twisted pair speed=100Mbit/s
resources: irq:43 memory:e4600000-e461ffff memory:e4620000-e4620fff ioport:4020(size=32)
*-network
description: Wireless interface
product: BCM4312 802.11b/g LP-PHY
vendor: Broadcom Corporation
physical id: 0
bus info: pci@0000:10:00.0
logical name: eth1
version: 01
serial: 00:21:00:37:cc:20
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=wl0 driverversion=5.100.82.38 latency=0 multicast=yes wireless=IEEE 802.11bg
resources: irq:17 memory:e4000000-e4003fffkris@krislaptop:~$ ifconfig -a
eth0 Link encap:Ethernet HWaddr 00:1f:29:9b:0e:02
inet addr:192.168.1.100 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: fe80::21f:29ff:fe9b:e02/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:1740 errors:0 dropped:0 overruns:0 frame:0
TX packets:2731 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:217827 (217.8 KB) TX bytes:240211 (240.2 KB)
Interrupt:22 Memory:e4600000-e4620000
eth1 Link encap:Ethernet HWaddr 00:21:00:37:cc:20
inet6 addr: fe80::221:ff:fe37:cc20/64 Scope:Link
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)
Interrupt:17
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:63 errors:0 dropped:0 overruns:0 frame:0
TX packets:63 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:3307 (3.3 KB) TX bytes:3307 (3.3 KB)Comment
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Re: Network is unreachable
The computer is definitely connected to the router. So I don't know why it won't connect to the internet. Perhaps the landlord has some kind of filter set to only allow one connection. I don't know.Comment
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