K5JB is a network utility that will run on a 3B2.  It is used specifically
for amatuer radio packet operation but will also support ftp
tcpip and telnet between other machines as well as slip.
New updates of the software can be found on ftp.ucsd.edu
hamradio/packet/tcpip/k5jb
I have the system up and running on my system and like it.
TGOODIN@DELPHI.COM      Tim