ADSL with NAT

17 Nov 2006 3:05 PM

Mandi

Hi all,
I have an ADSL connection from my ISP.
If I test in a dos box my IP with ipconfig the outcome is different from my
public IP address given by MyIpAddress.com(Pinging to both addresses from my
PC works fine).

Does that mean that I'm working behind a NAT?

Could that be a UPNP NAT or this is feature is only available in home
networks routers?

Thanks for any reference

Mandi

17 Nov 2006 5:02 PM

Chuck

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On Fri, 17 Nov 2006 07:05:22 -0800, "Mandi" <ma***@amon.com> wrote:

>Hi all,
>I have an ADSL connection from my ISP.
>If I test in a dos box my IP with ipconfig the outcome is different from my
>public IP address given by MyIpAddress.com(Pinging to both addresses from my
>PC works fine).
>
>Does that mean that I'm working behind a NAT?
>
>Could that be a UPNP NAT or this is feature is only available in home
>networks routers?
>
>Thanks for any reference
>
>Mandi

Mandi,

How is your computer connected to your Internet service? Make and model of each
piece of network equipment is useful here.
<http://nitecruzr.blogspot.com/2005/06/background-information-useful-in.html>
http://nitecruzr.blogspot.com/2005/06/background-information-useful-in.html

It's likely that you have a router doing NAT, or your ISP could be selling you
NATted service, as opposed to routed service.

UPnP is a separate product, which is not a flavour of NAT. UPnP is used on some
NAT routers, with UPnP compatible applications like IM.
<http://nitecruzr.blogspot.com/2006/01/nat-routers-with-upnp-security-risk-or.html>
http://nitecruzr.blogspot.com/2006/01/nat-routers-with-upnp-security-risk-or.html

--
Cheers,
Chuck, MS-MVP [Windows - Networking]
http://nitecruzr.blogspot.com/
Paranoia is not a problem, when it's a normal response from experience.
My email is AT DOT
actual address pchuck mvps org.