Find External (WAN) IP Address

Chris Fink

Help....I am trying to use the System.net namespace to determine the
Internet (WAN) IP Address of my computer. No luck finding any such class so
far.
Any ideas?

Nov 15 '05 #1

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3173

William Stacey

Your dial-up RAS interface or the public IP of your NAT router?

--
William Stacey, MVP

"Chris Fink" <ch*********@ho tmail.com> wrote in message
news:uV******** ******@TK2MSFTN GP12.phx.gbl...

Help....I am trying to use the System.net namespace to determine the
Internet (WAN) IP Address of my computer. No luck finding any such class so far.
Any ideas?

Nov 15 '05 #2

Chris Fink

public IP of my router.

"William Stacey" <st***********@ mvps.org> wrote in message
news:eM******** *****@TK2MSFTNG P12.phx.gbl...

Your dial-up RAS interface or the public IP of your NAT router?

--
William Stacey, MVP

"Chris Fink" <ch*********@ho tmail.com> wrote in message
news:uV******** ******@TK2MSFTN GP12.phx.gbl...
Help....I am trying to use the System.net namespace to determine the
Internet (WAN) IP Address of my computer. No luck finding any such class

so
far.
Any ideas?

Nov 15 '05 #3

William Stacey

No apis for that AFAIK. When you think about it, how could your local
machine know. It could be behind many layers of NAT. The only way to know
for sure is to have some kind of service on the "outside" that could tell
you in a reply. You could scrap the IP from a service like
network-tools.com, etc. Or have a small web service that is hosted in front
of your nat to tell you. Or use something like smtp against your router.

--
William Stacey, MVP

"Chris Fink" <ch*********@ho tmail.com> wrote in message
news:eB******** ******@TK2MSFTN GP11.phx.gbl...

public IP of my router.

"William Stacey" <st***********@ mvps.org> wrote in message
news:eM******** *****@TK2MSFTNG P12.phx.gbl...
Your dial-up RAS interface or the public IP of your NAT router?

--
William Stacey, MVP

"Chris Fink" <ch*********@ho tmail.com> wrote in message
news:uV******** ******@TK2MSFTN GP12.phx.gbl...
Help....I am trying to use the System.net namespace to determine the
Internet (WAN) IP Address of my computer. No luck finding any such
class so
far.
Any ideas?

Nov 15 '05 #4

Michael Culley

Why do you need it?

--
Michael Culley
"Chris Fink" <ch*********@ho tmail.com> wrote in message news:uV******** ******@TK2MSFTN GP12.phx.gbl...

Help....I am trying to use the System.net namespace to determine the
Internet (WAN) IP Address of my computer. No luck finding any such class so
far.
Any ideas?

Nov 15 '05 #5

Willy Denoyette [MVP]

If your Wan router is UPNP enabled, you can use the Upnp COM interfaces
(upnp.dll) available on W98, XP and higher.

Willy.

"Chris Fink" <ch*********@ho tmail.com> wrote in message
news:uV******** ******@TK2MSFTN GP12.phx.gbl...

Help....I am trying to use the System.net namespace to determine the
Internet (WAN) IP Address of my computer. No luck finding any such class
so
far.
Any ideas?

Nov 15 '05 #6

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