LinuxQuestions.org
Share your knowledge at the LQ Wiki.
Go Back   LinuxQuestions.org > Forums > Linux Forums > Linux - Hardware
User Name
Password
Linux - Hardware This forum is for Hardware issues.
Having trouble installing a piece of hardware? Want to know if that peripheral is compatible with Linux?

Notices


Reply
  Search this Thread
Old 03-23-2006, 11:36 AM   #1
MQMan
Member
 
Registered: Jan 2004
Location: Los Angeles
Distribution: Slack64 14.1
Posts: 568

Rep: Reputation: 38
Unhappy Is This a Bad NIC or Something Else


Using a low powered (450Mhz AMD-K6, 256K) Slack 10.2, 2.6.13, box as gateway/firewall. It does run a single KDE session, but activity there is almost zero.

Lately I've been having problems with my cable connection dropping out, at fairly regular intervals, sometimes for only a second, other times longer. I've not been able to tie this down to any particular activity. Running a line test, at DSLReports, gives this. Connecting another machine to the modem has no problems.

ifconfig, for the NIC connected to the modem shows a high number of errors:

eth0 Link encap:Ethernet HWaddr 00:A0:CC:37:4E:AA
inet addr:24.127.xxx.xxx Bcast:255.255.255.255 Mask:255.255.254.0
inet6 addr: fe80::2a0:ccff:xxxx:xxxx/64 Scope:Link
UP BROADCAST NOTRAILERS RUNNING MULTICAST MTU:1500 Metric:1
RX packets:20417172 errors:93970 dropped:0 overruns:0 frame:140963
TX packets:11336753 errors:5 dropped:0 overruns:0 carrier:6
collisions:0 txqueuelen:1000
RX bytes:3744265099 (3570.8 Mb) TX bytes:660228862 (629.6 Mb)
Interrupt:11 Base address:0x6000

Does this look like a dying NIC (Lite-On Communications Inc LNE100TX [Linksys EtherFast 10/100]), or could there be any kind of mis-configuration that might cause this.

Cheers,
Eddie
 
Old 03-23-2006, 05:17 PM   #2
dasy2k1
Member
 
Registered: Oct 2005
Location: 127.0.0.1
Distribution: Ubuntu 12.04 X86_64
Posts: 960

Rep: Reputation: 35
might be a dodgey conection on your CAt5 cable (i presume you are conected to the modem via Cat5)... taht can cause unexpected data loss,
I had this problem and it took ma ages to track down as it was intermittent depending on moovement of the network cable...
 
Old 03-23-2006, 06:29 PM   #3
MQMan
Member
 
Registered: Jan 2004
Location: Los Angeles
Distribution: Slack64 14.1
Posts: 568

Original Poster
Rep: Reputation: 38
Naw. One of the 1st things I tried was changing the cable from the modem.

Cheers,
Eddie
 
Old 03-24-2006, 01:31 AM   #4
MQMan
Member
 
Registered: Jan 2004
Location: Los Angeles
Distribution: Slack64 14.1
Posts: 568

Original Poster
Rep: Reputation: 38
Problems solved. Well, at least the ones here. I've still got a random "dropping connection" from my cable connection to deal with.

A new NIC stopped the errors/frame (errors). Then I realised, eventually, that my firewall script was actually doing it's job. It was designed to start, silently, dropping pings if it thought I was being flooded. Guess what, that screws up DSLReports line test, as that relies on lots of pings. Turning off that part of the firewall gave me this. Which, kinda, makes me a happy camper again.

Ah well, off to do battle with the cable guys again.

Cheers,
Eddie
 
  


Reply


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
2 NIC`s activated = bad performance saavik Linux - Networking 3 04-06-2005 06:32 AM
mount: wrong fs type, bad option, bad superblock on /dev/cdrom, Adil_uk Linux - Hardware 9 02-16-2005 05:50 PM
mount: wrong fs type, bad option, bad superblock on /dev/sdb1 pmoreira Linux - Hardware 5 02-26-2004 10:31 AM
Replacing bad NIC mitch_rog Linux - Networking 1 04-05-2003 08:46 AM
Bad Nic ? loganwva Linux - Networking 1 04-03-2002 04:58 AM

LinuxQuestions.org > Forums > Linux Forums > Linux - Hardware

All times are GMT -5. The time now is 06:14 PM.

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