We create a /usr/sbin/cebox.sh file with the following content:
#!/bin/sh pppd call cebox
This file is executed in PC to run the ppp server. A /etc/ppp/cebox.chat file contains the next:
AT OK AT OK AT OK AT OK AT OK ATDT CONNECT
This file contains the authentication options for the PC and the HP Jornada.
Finally, you have to make a link between /dev/irnine and /dev/ircomm0:
ln /dev/ircomm0 -s /dev/irnine
and to create the next file (named /etc/ppp/peers/cebox):
/dev/irnine 115200 nocrtscts connect /usr/sbin/chat -v -f /etc/ppp/cebox.chat noauth local dirIPpc:dirIPjornada ms-dns servidorDNS
You have to change dirIPpc for the PC's IP address and dirIPjornada for the HP Jornada's IP address. You also have to change servidorDNS for your DNS server's IP address.