dm9601 networking issue

Hello everyone.

I just recently got a rev. C3 BeagleBoard and am currently working on
getting the Ångström demo working with a set of peripherals. Among
them is a cheap USB-to-Ethernet adapter for networking, which needs
the dm9601 driver to function.
Networking functions without problems within my home network, but I
can't access any hosts outside. A ping, for example, produces the
following error:
root@rika:~# ping
PING ( 56 data bytes
ping: sendto: Network is unreachable

I haven't made an own kernel so far and the other components of
Ångström are mostly unchanged.

I have nearly no expertise with this kind of networking problems, so I
appreciate any help I can get. Thanks in advance!


In case anyone faces the same problem in the future, I've figured out
a solution myself:
Execute the following as root:
route add default gw
...whereas should be replaced by the gateway IP of the