Persisting the Netgear Traffic Meter using expect (http://blog.altimos.de/2013/12/persisting-the-netgear-traffic-meter-using-telnet-and-expect/)

trafficMtr.sh

#!/usr/bin/expect

set timeout 20
set name [lindex $argv 0]
set user [lindex $argv 1]
set password [lindex $argv 2]
spawn telnet $name

expect "login: "
send "$user\n"
expect "Password: "
send "$password\n"
expect "$ "
send "monitor/trafficMtr/summary wanId 1\n"
expect "Percentage of this Month's Limit"
expect "$ "
send "exit\n"
expect eof