--- /dev/null
+#
+# 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
+
\ No newline at end of file