Re: VPN Ports

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From: Robert L [MS-MVP] (noreply_at_hotmail.com)
Date: 05/13/04


Date: Thu, 13 May 2004 10:46:24 -0500

quoted form http://www.ChicagoTech.net
Which ports need to be opened for running VPN

A: PPTP VPN uses TCP Port 1723, IP Protocol 47 (GRE); L2TP: UDP Port 1701;
IPSec: Pass IP protocol 50 and 51. Note: 47 is a protocol number and not
TCP port. The protocol name is GRE. It'll make a big difference when
configuring your firewall or router.

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Robert Lin, MS-MVP, MCSE & CNE
Networking, Internet, Routing, VPN, Anti-Virus, Tips & Troubleshooting on 
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"Steve" <Steve@=No=Spam.org> wrote in message 
news:eONSEmOOEHA.2972@TK2MSFTNGP10.phx.gbl...
> Hi,
>
> Which ports do I need to open in my router's Port Address Table to allow a
> VPN connection to be set up?
>
> Thanks
> Steve
>
> 


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