Ubuntu recognise NIC - doesn't show up in ifconfig no dhcpcd

[G.I.Josh]

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I'm using Ubuntu, my ethernet card is connected strait to my cable modem, and here is my problem.

My NIC is showing up as being recognised in the dmesg log:

dmesg | grep -i "eth0" ->
eth0: Realtek at *hex*, *more hex*, IRQ number
eth0: identified 8139 chip type "RTL - 8101"

However, it isn't showing up in ifconfig. What does this meen? Also, I tried running dhcpcd, but it isn't installed on Ubuntu.

Thanks for your help.

[lakerdonald]

ifconfig eth0 up
dhclient eth0

[G.I.Josh]

Thanks. That worked perfectly.