SP2 and Nat-T

[Guest]

Hi,

I had been using Windows XP SP1 with update 818043 installed and everything
worked great. After installing SP2 I was no longer able to make connections
that were using nat-t. I have configured the firewall (and even tried
disabling it) but that doesn't do it. It really seems to be a problem with
sp2 and nat-t. And I'm starting to see this pop up on other newsgroups.

Please get back soon, thanks.
-Jeff Barton

 

[Hans-Georg Michna]

On Thu, 19 Aug 2004 11:43:02 -0700, "Jeff Barton" <Jeff

I had been using Windows XP SP1 with update 818043 installed and everything
worked great. After installing SP2 I was no longer able to make connections
that were using nat-t. I have configured the firewall (and even tried
disabling it) but that doesn't do it. It really seems to be a problem with
sp2 and nat-t. And I'm starting to see this pop up on other newsgroups.

Jeff,

what's Nat-T?

Hans-Georg

 

[Guest]

Hi all,

Although Microsoft has been completely quiet on this, I stumbled on a fix
for the troubles we have been having with SP2 and NAT-T on the
microsoft.public.de.german.windowsxp.networking newsgroup. Here is what you
need to do…

- Open up regedit and navigate to
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\IPSec
- Create a new DWORD value with the name
AssumeUDPEncapsulationContextOnSendRule and a value of 1
- Restart

Seems like it's gotta be an oversight by Microsoft, they should own up to it
soon and post something to help people out.

-Jeff