Linux script to change IP on modem Thomson TG587/TG585

changeIP.sh

#!/bin/bash

set timeout 20

#Just to compare the old and new IP
echo Old IP:
curl "https://wtfismyip.com/text"


/usr/bin/expect << EOF

spawn telnet "192.168.1.254"

#Username
expect ":" { send "TELMEX\r" }

#Password
expect ":" { send "YOUR_PASSWORD_HERE\r" }

#http://npr.me.uk/telnet.html
#Drop / Start PPP Session
#  With some ISP connections this may change your gateway it may also change your IP address.
#  Useful if your ISP sometimes has congested gateways.
send "ppp ifdetach intf=Internet\r"
sleep 5
send "ppp ifattach intf=Internet\r"
sleep 5
send "exit\r"

EOF

echo New IP:
curl "https://wtfismyip.com/text"