Thanks again to everyone for all the help!

I did this (thanks Andrey):

ndb/cs
> ip/ipconfig
> ndb/dns -r
>

Then I took a look at /net/ipselftab and /net/iproute.

Then I pinged the gateway (thanks André) and got a response!

Then I did (thanks Federico)

hget http://google.com
>

and got some hieroglyphs. Then I did

http://www.gamefaqs.com/portable/ds/file/924897/46369
>

which is a fairly clean text file, to get something readable. It worked!