## port-id-map## This file describes the ttyname to port id mapping. The port id# is reported as part of a RADIUS authentication or accouting request.##ttyname (as returned by ttyname(3))	port-id/dev/tty1	1/dev/tty2	2/dev/tty3	3/dev/tty4	4/dev/tty5	5/dev/tty6	6/dev/tty7	7/dev/tty8	8/dev/ttyS0	9/dev/ttyS1	10/dev/ttyS2	11/dev/ttyS3	12/dev/ttyS4	13/dev/ttyS5	14/dev/ttyS6	15/dev/ttyS7	16