Share your knowledge at the LQ Wiki.
Go Back > Forums > Linux Forums > Linux - Networking
User Name
Linux - Networking This forum is for any issue related to networks or networking.
Routing, network cards, OSI, etc. Anything is fair game.


  Search this Thread
Old 04-28-2006, 06:32 PM   #1
LQ Newbie
Registered: Aug 2005
Location: canada
Distribution: debian
Posts: 8

Rep: Reputation: 0
Exclamation Networking omg please help i hate windows need to fix this!

I'm not sure where to start but pretty much i have a large paper weight.. My debian desktop machine that i recently fired back up and although it is communicating with the modem (shaw cable moterola 'extreme package') I have an on-board network card, and when i seen it was communicating and requesting an ip but it was not grabbing a lease, i was suspicious that perhaps it was a piece of hardware. I installed a second nic as eth1, but to my surprise it was the same result. I plugged a 400 Mhz windows machine and it was pretty much plug and play on the same modem/cable and grabbed an ip right away, but the linux machine will not grab a dhcp lease no matter what i've tried.. i've checked the logs and there are no errors whatsoever. If somone has any ideas could they please share their insight with me? I really don't want to be on this windows machine much longer lol!

Last edited by soman; 04-28-2006 at 06:39 PM.
Old 04-28-2006, 06:47 PM   #2
LQ Guru
Registered: Aug 2001
Location: Fargo, ND
Distribution: SuSE AMD64
Posts: 15,733

Rep: Reputation: 682Reputation: 682Reputation: 682Reputation: 682Reputation: 682Reputation: 682
Make sure that you use DHCP on the interface with the Cable Modem. ( Unless Canadian cable companies do things dramatically different )
If you have another interface such as wireless, you might have a conflict where both interfaces end up on the same subnet. Try shutting it down.

Use the "ifconfig" or "ip" command to find out whether your interface got an IP address, netmask, etc. Also check the /etc/resolve.conf file. It should be changed by the DHCP client on your computer with the nameserver address added.

Also, make sure that you have a DHCP client installed.

Other things to look at:
  • lspci -v to list the NIC hardware information
  • output of "dmesg" and /var/log/messages may contain information on errors when the network starts up
  • output of the route command. Check if the default gateway matches the modem's IP address.
  • A new device connected to the cable modem needs to be requisitioned. Point your browser at the IP address of the modem, or maybe the web site of your ISP.
Old 04-28-2006, 06:51 PM   #3
Registered: Apr 2006
Location: Pittsburgh
Distribution: Debian Sid AMD64
Posts: 296

Rep: Reputation: 30
If you change the hardware that's plugged in to a cable modem, you have to power the modem off for a minute or two (pull the plug, don't use the switch on the top) before it will talk to the new device. Otherwise it will just "pretend" to talk to it.

If you've already tried this, show us your DHCP client's output.


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
what you HATE about using windows tsphan General 23 02-10-2005 12:02 AM
Strange networking problem-or I hate wireless aclaunch Linux - Wireless Networking 1 01-18-2004 05:51 PM
I will wager $50 that you can't fix my networking! bjarvis829 Linux - Networking 1 11-24-2003 09:56 AM
Why do you Hate Windows New2Lindows General 46 08-20-2003 05:39 PM
OMG! OMG! i did it!!!!! happy new year baby chingasman Linux - Distributions 2 01-03-2003 09:52 AM > Forums > Linux Forums > Linux - Networking

All times are GMT -5. The time now is 03:24 PM.

Main Menu
Write for LQ is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
Open Source Consulting | Domain Registration