VPN and remote printing

All of our remote users use a VPN-pptp
connection to login into our unix system.
Their IP address is always different.

Our challenge is to find out how to send
print jobs to their LPT1-printer using
unix’s lpd since we need an ip to
address the job.

At a branch level, all printers have
static-ip’s but with remote users that’s
a whole different story.