Can I find my WAN IP address automatically?

[jsteph]

Hi,
I've got ameritech DSL service and it changes the Wan IP address daily. This makes it difficult to VNC into my home PC from work.

What I need is to have some engine or code running on the PC (Windows XP) that will check for and know the Wan IP address when it changes. I've heard of places like DynDNS.org, etc that promise to deal with this, but I've been there and had no luck--the engines I've downloaded there just give me the local PC's IP address. That of course does me no good.

I guess all I'd need is some sort of Windows API or something and I can write VB code that will get this address and I can automatically email this to me whenever it changes. The current method I use is to call my wife and have her give the address to me from the router page, but, well, that get's to be a pain for both of us. I'd really appreciate any help or pointers in the right direction of how to get this IP address automatically.
Thanks,
Jim

 

[bcastner]

IP Find or EzDNS

http://www.webattack.com/shareware/network/swip.html

 

[jimbopalmer]

I use

http://fmip.org/

which tells me what my IP has changed to

I tried to remain child-like, all I acheived was childish.

 

[predamarcel]

you can use the ipconfig command ina batch script.
for example

C:\>ipconfig

Windows IP Configuration


Ethernet adapter Local Area Connection:

        Media State . . . . . . . . . . . : Media disconnected

PPP adapter RDS:

        Connection-specific DNS Suffix  . :
        IP Address. . . . . . . . . . . . : 82.76.249.113
        Subnet Mask . . . . . . . . . . . : 255.255.255.255
        Default Gateway . . . . . . . . . : 82.76.249.113

and you can create a batch script (named get_ip.bat), you have to modify probable the skip=11 (count the line number where is your IP):

@echo off
rem get_ip.bat file
FOR /F "usebackq delims=: skip=11 tokens=2" %%i IN (`ipconfig`) DO (
@echo %%i
goto :EOF
)

the output:

C:\>get_ip
 82.76.249.113

Probable you can integrate this script with your needs,
also probable you have to put the get_ip.bat file in your %PATH%

___

http://marcel.4x4.ro/

____

 

[John Lewis]

A dynamic DNS service is your best bet. I like

http://www.dyndns.org/services/dyndns/

 

[jsteph]

Thanks all! I may look at those as well they look promising--but I found that part of my problem was that when I tested the client-engine that I got from dyndns.org, I was testing on my work machine. It is behind all sorts of firewall protection, pinging either way is restricted, and all sorts of other stuff is restricted. But when I tested at home, it did indeed give the router's external wan address.
--Jim