Digi Connect IT 4

Serial port Configure PPP dial-in mode
Digi Connect IT® 4 User Guide
237
(config)> serial port1 ppp_dialin custom config_file "debug lcp-echo-
interval 10 lcp-echo-failure 2"
(config)>
15. (Optional) Configure a script that will be run to prepare the link before PPP negotiations are
started:
a. Enable the use of a connection script.
(config)> serial port1 ppp_dialin connect enable true
(config)>
b. Set the name of the script:
(config)> serial port1 ppp_dialin connect script filename
(config)>
Scripts are located in the /etc/config/serial directory. An example script, windows_dun.sh
is provided.
Example windows_dun.sh file:
#!/bin/sh
# Example connect script for connecting from a PC using a Windows dial-
up
# networking connection with built-in standard 33600 bps modem driver
and phone
# number 123.
# The shell's 'read' builtin breaks on newline, so translate incoming
carriage-
# return to newline, and outgoing newline to carriage-return-newline.
stty icrnl onlcr opost
# Read input from the serial port, one line at a time.
while read -r line; do
case "$line" in
ATDT123)
echo "CONNECT" # instruct the peer to start PPP
exit 0 # start up the local PPP session
;;
AT*)
echo "OK" # passively accept any other AT command
;;
esac
done
16. Save the configuration and apply the change:
(config)> save
Configuration saved.
>