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Re: Cannot connect to network anymore





Mitja Podreka a écrit :
Douglas Allan Tutty wrote:
On Wed, Jul 11, 2007 at 01:07:19AM +0200, Mitja Podreka wrote:
In the last few days I cannot connect to network with my laptop anymore. It is a dual boot and in windows everything works fine. In Debian it doesn't work anymore. I use Etch.

As I have no idea where to start I'm asking for help and sending some information about what computer says:

klopotec:~# ifconfig

eth0      Link encap:Ethernet  HWaddr 00:08:02:02:96:6F

         inet6 addr: fe80::208:2ff:fe02:966f/64 Scope:Link

         UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
klopotec:~# dhclient eth0
Listening on LPF/eth0/00:08:02:02:96:6f

Sending on   LPF/eth0/00:08:02:02:96:6f

Sending on Socket/fallback No DHCPOFFERS received.

No working leases in persistent database - sleeping.

1 ) Do you know if you use ipv4 or ipv6 ?

Can the laptop connect on any other network?  Is it the cable?  Do you
have a connect light on the NIC or on whatever the other end of the
cable goes to?
I have an ADSL connection and for the last two months (since I installed Etch) it was working fine. If I reboot to windows it works fine, when I came back it doesn't work, so I guess it is a software problem in Etch. I have another computer on the same connection running Etch and it also works fine
2 ) Have you updated your etch system between the last working etch and the actual etch ? Have you changed the kernel ?

3 ) If you use ipv4 (classic ip address type), try in windows to launch a ms-dos console and enter the "ipconfig" command. Note the ip address, netmask and gateway And try a /etc/network/interfaces config file as this followind one :
auto eth0
iface eth0 inet static
address "put here the ip address without the quotes"
netmask "put here the netmask without the quotes"
gateway "put here the gateway without the quotes"

Then do "/etc/init.d/networking restart" and try to ping another machine on your network (gateway for example). Tell us if it works or not.

Do you know the network topography or the IP of the dhcp server?  Can
you ping it from your laptop?  Can you ping anything from your laptop?
I know the IP of DHCP server and I cannot ping anything:
connect: Network is unreachable
It could be a problem with the dhcp server and not with your
laptop.  Do you also control the dhcp server?  What do its logs show.
Do they show a request from your laptop?
If other computer and OS works I guess it is not the problem of DHCP server.


thanks
Mitja

Hopes this help
Christophe



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