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Re: NIC is working, but how?



On Sun, 2004-03-07 at 21:30, Mario Flores wrote:
> Hi:
> 
>     I just installed debian woody in a dell pc (400 Mhz, 128 megs, and a 
> 3com NIC: 3c905B 100BaseTX). During the installation of debian, the 
> installation of any network card module failed. All network 
> configuration was wrong and kept getting the "neighbour table overflow" 
> message. After installation, I manually configured the 
> /etc/netwrok/interfaces to have:
> 
> auto lo
> auto eth0
> 
> iface lo inet loopback
> iface eth0 inet dhcp
> 
> I rebooted the system expecting the eht0 not to work but at least fix 
> the loopback interface and to my surprise eth0 was working as well! I 
> could not find which module the kernel is using for eth0 anywhere. Is it 
> possible that it is not using any module? The output for lsmod is:
> 
> Module                  Size  Used by
> parport_pc              7276   1  (autoclean)
> lp                      4580   0  (unused)
> parport                 6676   1  [parport_pc lp]
> af_packet               6136   1
> 
> The output for ifconfig is:
> 
> eth0      Link encap:Ethernet  HWaddr 00:C0:4F:70:91:B4
>           inet addr:192.168.0.3  Bcast:192.168.0.255  Mask:255.255.255.0
>           UP BROADCAST RUNNING MULTICAST  MTU:1492  Metric:1
>           RX packets:7251 errors:0 dropped:0 overruns:0 frame:0
>           TX packets:5574 errors:0 dropped:0 overruns:0 carrier:0
>           collisions:0 txqueuelen:100
>           RX bytes:4234385 (4.0 MiB)  TX bytes:882175 (861.4 KiB)
>           Interrupt:11 Base address:0xdc00
> 
> lo        Link encap:Local Loopback
>           inet addr:127.0.0.1  Mask:255.0.0.0
>           UP LOOPBACK RUNNING  MTU:3924  Metric:1
>           RX packets:280 errors:0 dropped:0 overruns:0 frame:0
>           TX packets:280 errors:0 dropped:0 overruns:0 carrier:0
>           collisions:0 txqueuelen:0
>           RX bytes:18208 (17.7 KiB)  TX bytes:18208 (17.7 KiB)
> 
> Does anyone know how debian configures the NIC? Thanks,
> 

The way that you just did it :o)

I'm guessing that support for that NIC was compiled into the kernel,
thus no kernel module was required.

-davidc



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