A20-lime network doesn't work

[mrcotcot]

hello,
i come because i have a probleme with my network card

i flash the card with a good image (official) for the A20 lime
but when i want start the network,
( su
( dhclient eth0
( have a good configuration in /etc/network/interface
i don't have IPV4 adress
just IPV6

have you a similar joke
Thanks