[Gllug] Getting a second NIC up

[Jose Luis Martinez]

2008/11/24 Adrian McMenamin <adrian at newgolddream.dyndns.info>:
> <snip>
> No switch and I've tried another cable and still nothing.
>
> ifconfig eth1
> eth1      Link encap:Ethernet  HWaddr 00:02:e3:18:40:a3
>          inet addr:192.168.61.50  Bcast:192.168.61.255
> Mask:255.255.255.0
>          UP BROADCAST MULTICAST  MTU:1500  Metric:1
>          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
>          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
>          collisions:0 txqueuelen:1000
>          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)
>          Interrupt:16 Base address:0xe000
>
> But this seems to be illusory
>
> When I go ifdown/ifup, I get an overrun error reported
>
> eth1      Link encap:Ethernet  HWaddr 00:02:e3:18:40:a3
>          inet addr:192.168.61.50  Bcast:192.168.61.255
> Mask:255.255.255.0
>          UP BROADCAST MULTICAST  MTU:1500  Metric:1
>          RX packets:0 errors:1 dropped:0 overruns:1 frame:0
>          TX packets:0 errors:1 dropped:0 overruns:1 carrier:0
>          collisions:0 txqueuelen:1000
>          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)
>          Interrupt:16 Base address:0xe000
>
> sudo ethtool eth1
>
> Settings for eth1:
>        Supported ports: [ TP MII FIBRE ]
>        Supported link modes:   10baseT/Half 10baseT/Full
>                                100baseT/Half 100baseT/Full
>        Supports auto-negotiation: Yes
>        Advertised link modes:  10baseT/Half 10baseT/Full
>                                100baseT/Half 100baseT/Full
>        Advertised auto-negotiation: Yes
>        Speed: 10Mb/s
>        Duplex: Half
>        Port: Twisted Pair
>        PHYAD: 1
>        Transceiver: internal
>        Auto-negotiation: on
>        Supports Wake-on: pumbags
>        Wake-on: pubg
>        SecureOn password: 00:00:00:00:00:00
>        Current message level: 0x000040c5 (16581)
>        Link detected: no

There are three parameters you may want to check (compare them against
the other card)

Speed.
Duplex.
Link detected.

Maybe your hub or switch, for whatever reason, is running at  a
different speed or handshaking (full duplex instead of half duplex) or
different combinations of both.

Did you try connecting the cable from the working network card to the
one not working?

Do you have another network card to try instead of the one you are using?
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