A while ago Jason KY9J kindly sent me a copy of his script (which I have since lost) to convert encap.txt to generate tunnels for a Cisco IOS router. Are you still subscribed to the list Jason or can anybody else help with a copy of the script?
http://hamradio.ucsd.edu/mailman/private/44net/2012-November/000534.html was the original thread.
Many thanks, Nick G4IRX.