[windows2000] Re: VPN and Firewall

  • From: "Daniel Curry" <dcurry@xxxxxxxxxxxx>
  • To: <windows2000@xxxxxxxxxxxxx>
  • Date: Mon, 4 Aug 2003 11:46:11 -0700

This would largely depend upon which VPN protocol you decided to use.

PPTP uses port 1723/tcp to establish communications.
PPTP then uses protocol 47 -- GRE, generic routing encapsulation -- to
tunnel the data.

PPTP should take care of MOST simplified VPN issues.  

IPSEC is a whole other matter.  However, for 'office-to-office' or
static VPN connections, I tend to use routers with IPSEC. 

-----Original Message-----
From: Eduardo Freitas [mailto:eduardofreitas@xxxxxxxxxxxxxxxxx] 
Sent: Monday, August 04, 2003 11:38 AM
To: windows2000@xxxxxxxxxxxxx
Subject: [windows2000] VPN and Firewall

Hi guys,

Lets suppose I have a remote access VPN inside my network behind my 
firewall. What ports would I have to have open forwarding to my VPN
server 
so it works through the firewall?
Would that be reasonably safe?

Eduardo

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