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 From:  Bob Gustafson <bobgus at rcn dot com>
 Cc:  m0n0wall at lists dot m0n0 dot ch
 Subject:  Re: [m0n0wall] Massive Network Card Errors
 Date:  Tue, 27 Nov 2007 11:49:49 +0100
Use the viewer too. Perhaps a pattern will become visible.

The half/full duplex idea is also worth checking out.

Bob G

lutz dot niederer at gmx dot net wrote:
> I already did this.  I changed the cables, wiggled cables.  This did not help.
>
> -------- Original-Nachricht --------
>   
>> Datum: Tue, 27 Nov 2007 11:13:32 +0100
>> Von: Bob Gustafson <bobgus at rcn dot com>
>> An: lutz dot niederer at gmx dot net
>> CC: m0n0wall at lists dot m0n0 dot ch
>> Betreff: Re: [m0n0wall] Massive Network Card Errors
>>     
>
>   
>> It might be a bad cable or connector - maybe hairline crack in board..
>>
>> Set up a 'viewer' to look at errors on line (maybe Wireshark in realtime 
>> mode) and then wiggle cables and connectors - look for changes in the 
>> error rate.
>>
>> A software problem usually gives 0 errors or 100% errors. Hardware 
>> problem is most probable.
>>
>> Good luck
>>
>> Bob G
>>
>> lutz dot niederer at gmx dot net wrote:
>>     
>>> Hello,
>>>
>>> I do have a problem with the network connection between my wrap and my
>>>       
>> server.  As you can see from the attached data below, I get lots of errors
>> and I have no idea where they are coming from.  I changed cables, I changed
>> the duplex/full-duplex.  Nothing helped.  The connection between the Wrap
>> and the cable modem is without errors, the connection between my server and
>> other networking devices is without any errors.  On the server there is a
>> linux 2.4.32 kernel and a 4-port tulip-based card (adaptec).  On the Wrap
>> there is m0n0 version 1.231.
>>     
>>> These errors raise enormously in very short time if I transfer lots of
>>>       
>> data.  I am pretty sure that this is the problem why I only get about 10mbit
>> from my provider where I should get more than 20mbit.
>>     
>>> If anybody has an idea what I can do, please tell me.
>>>
>>> Thanks a lot!
>>> -lutzn
>>>
>>>
>>>
>>> M0N0 LAN interface						
>>> MAC address	00:0d:b9:01:90:ec 					
>>> IP address	10.252.229.254   					
>>> Subnet mask	255.255.255.0 						
>>> Media	100baseTX 						
>>> In/out packets	20054856/26404594 (1.39 GB/3.40 GB) 			
>>> In/out errors	0/1577620 						
>>> Collisions	1586502 						
>>>
>>> M0N0 DMZ interface						
>>> Status	up 						
>>> MAC address	00:0d:b9:01:90:ed 					
>>> IP address	10.252.228.254   					
>>> Subnet mask	255.255.255.0 						
>>> Media	100baseTX 						
>>> In/out packets	157816/139828 (62.64 MB/24.41 MB) 			
>>> In/out errors	0/201 						
>>> Collisions	300 						
>>>
>>>
>>> SERVER DMZ interface 
>>> eth3      Link encap:Ethernet  HWaddr 00:C0:95:E0:98:DA
>>>           inet addr:10.252.228.1  Bcast:10.252.228.255 
>>>       
>> Mask:255.255.255.0
>>     
>>>           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
>>>           RX packets:201426 errors:211 dropped:0 overruns:0 frame:320
>>>           TX packets:220316 errors:3 dropped:0 overruns:0 carrier:6
>>>           collisions:0 txqueuelen:1000
>>>           RX bytes:47272559 (45.0 Mb)  TX bytes:96989387 (92.4 Mb)
>>>           Interrupt:21 Base address:0x6000
>>>
>>> SERVER LAN interface
>>> eth4      Link encap:Ethernet  HWaddr 00:C0:95:E0:98:DB
>>>           inet addr:10.252.229.1  Bcast:10.252.229.255 
>>>       
>> Mask:255.255.255.0
>>     
>>>           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
>>>           RX packets:43793462 errors:1601114 dropped:0 overruns:0
>>>       
>> frame:2396528
>>     
>>>           TX packets:34521256 errors:3 dropped:0 overruns:0 carrier:6
>>>           collisions:0 txqueuelen:1000
>>>           RX bytes:2331563867 (2223.5 Mb)  TX bytes:2690282837 (2565.6
>>>       
>> Mb)
>>     
>>>           Interrupt:22 Base address:0x8000
>>>
>>>  
>>>
>>>
>>>   
>>>       
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>>     
>
>