TCP 4500

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news.microsoft.com

Had to connect briefly to the net with firewall down. Since then have
noticed an open connection on my machine on udp 4500 which I can't remember
seeing before.

Its used by sae-urn, whatever that is.

Can anyone explain what sae-urn is or what other uses of 4500 there are?

TIA
 
Not that I know of.

I installed a load of MS patches the other day and seem to remember that one
of them was a NAT fix. What service do I need to turn off to stop NAT?

Also;

Can I turn off the following services Ok (I have a single home PC):-

Computer Browser
Distributed Link Tracking Client
Remote Registry Service
Server (lanmanserver)
TCP/IP NetBIOS Helper Service

Thanks
 
The NAT fix for L2TP is unrelated.

news.microsoft.com said:
Not that I know of.

I installed a load of MS patches the other day and seem to remember that one
of them was a NAT fix. What service do I need to turn off to stop NAT?

Also;

Can I turn off the following services Ok (I have a single home PC):-

Computer Browser
Distributed Link Tracking Client
Remote Registry Service
Server (lanmanserver)
TCP/IP NetBIOS Helper Service

Thanks
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