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Old 07-14-2006, 05:32 AM   #1
Maverick1182
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Registered: Aug 2004
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Distribution: Gentoo
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which eth works?


My onboard SIS ethernet socket seems to have died recently and I have purchased a new pci card which i've slotted in and works fine on a knoppix livecd on boot. I have to install gentoo permanently on the system and need to know which eth? to use. is there a command i can type from the console which tells me which of the eth's my computer is using? it detects eth0 eth1 and eth2 at startup but doesnt tell me which is transporting information.

p.s. will the numbering regime stay the same when i refer to it in other linux versions?

Thanks
 
Old 07-14-2006, 05:58 AM   #2
cdhgee
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Code:
ifconfig -a
That will tell you all ethernet interfaces even if they're not in use. Numbering regime is common to all Linuxes - start at 0 and count upwards!
 
Old 07-14-2006, 05:59 AM   #3
Bruce Hill
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Wouldn't hurt to reveal your Linux version.

In Slackware you'd issue:
Code:
mingdao@silas:~$ /sbin/ifconfig
eth0      Link encap:Ethernet  HWaddr 00:11:2F:E0:B7:65
          inet addr:192.168.1.31  Bcast:192.168.1.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:3168 errors:0 dropped:0 overruns:0 frame:0
          TX packets:3026 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:2780574 (2.6 MiB)  TX bytes:551271 (538.3 KiB)
          Interrupt:19 Memory:fdd00000-0

lo        Link encap:Local Loopback
          inet addr:127.0.0.1  Mask:255.0.0.0
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:433 errors:0 dropped:0 overruns:0 frame:0
          TX packets:433 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:45543 (44.4 KiB)  TX bytes:45543 (44.4 KiB)

tap0      Link encap:Ethernet  HWaddr 06:27:4B:DC:2F:09
          inet addr:10.111.111.254  Bcast:10.111.111.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:1 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:500
          RX bytes:53 (53.0 b)  TX bytes:0 (0.0 b)
In my motherboard's BIOS the onboard ethernet can be disabled, making eth0 (in my case) disappear.
 
  


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