You need to complete the direwolf config and also get the callpass as you will need it.
https://github.com/RattyDAVE/raspberry-pi-hamradio/blob/master/direwolf_config.md
You also need an Amature Radio IP address. This is in the 44.x.x.x range. You can request one from here http://wiki.ampr.org/wiki/Requesting_a_block
sudo nano /etc/ax25/axports
Add the following, but replacing CALLSIGN with your callsign.
ax0 CALLSIGN 1200 255 2 Packet
Leave with ctrl+x and save and reboot
Stop Direwolf if running and run with the added -p option.
direwolf -t 0 -c ~/direwolf.conf -p
When direwolf starts it will show the TNC port. Yours may be different.
Virtual KISS TNC is available on /dev/pts/2
We can now start kissattach. Replace /dev/pts/2 with yours and also replace the IP address with your IP address.
sudo /usr/sbin/kissattach /dev/pts/2 ax0 44.x.x.x
Now we can install Linpac. Open the raspbian menu settings: add / remove Software, search for linpac, select it and Apply. Start linpac with:
sudo linpac -m Now linpac should run and you can adjust your individual setup. When ready make a reboot.