getting into a linksys router

[sde]

i wrote a program which monitors your external ip address from behind a firewall. the purpose is so that if your ip is dhcp, and it changes, an email will be sent with your new ip addy. ( so you can still remote in )

well the problem is that currently i have to rely on an external web server to report back the external ip.

i thought another way to go about this is somehow log into the router's web control panel, and read the page. then use a simple regex to filter out the external ip.

when you open the web control panel, you get one of those popup authentication boxes. i'm wondering what type of header data would i have to send to the page for this to authenticate and allow me to read the pages.

any ideas?

[joe_bruin]

it's probably just simple http-auth. you're going to need a base64 encoder, but that's about it.

remember, netcat is your friend.

[Admin]

why dont you just use dynamic dns?

[sde]

dynamic dns?

i'm not sure i totally understand, but regardless if i have my interal network setup dynamic or static, .. i still need a way to find out my external ip.

i run remote admin, and some other remote utilities that allow me to get into my network from work. so if my external ip changes, then i would not know my ip, until i got home to check it.

i have a version of this app that works, i would just be out of luck if the web server that prints the ip was down at the same time the ip changed.

[bdl]

dyndns.org

BTW, check Adelphia's TOS. You're not even supposed to be running a server.