Contiki telnet client

I can't seem to get the Contiki telnet client to work on my Enhanced Apple //e. I have the //e's Uthernet II hooked up to my Raspberry Pi to give it Internet access. I can browse the Internet no problem.

But every time I enter the telnet client, it says "Contiki up and running ..." followed shortly after by multiple Lines saying "ip: invalid version or header length."

Any ideas?

Thanks!

Edit: Whoops! It's a telnet server, not a client.