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Legacy Forums => Experienced User Forum => Topic started by: Tom Veitch on September 10, 2002, 12:20:12 AM

Title: VPN Pass though
Post by: Tom Veitch on September 10, 2002, 12:20:12 AM

What ports do a VPN connection use if i want it to pass though sme to a windows 2000 server for vpn connection

i want to do port fowarding

Title: Re: VPN Pass though
Post by: Greg Nederveld on September 10, 2002, 01:48:11 AM

If you're using PPTP, it's port 1723....

Title: Re: VPN Pass though
Post by: trevorb on September 10, 2002, 03:25:02 AM

There are a number of discussions on VPN over time (ensure you click the all dates option on the search. A lot of discussion was on using the Nortel VPN client, so look for Nortel). But generally if you are using ipsec it is TCP port 50 & UDP port 500.

Trevor B

Greg Nederveld wrote:
>
> If you're using PPTP, it's port 1723....

Title: Re: VPN Pass though
Post by: Dan G. on September 10, 2002, 09:45:36 PM

It's actually IP protocol 50, NOT TCP port 50.  Two very different things...

Title: Re: VPN Pass though
Post by: trevorb on September 11, 2002, 08:27:58 AM

Oops. Too quick & too glib for my own good... :-)

Trevor B

Dan G. wrote:
>
> It's actually IP protocol 50, NOT TCP port 50.  Two very
> different things...

Title: Re: VPN Pass though
Post by: John Henry on September 11, 2002, 10:29:30 AM

For winbox’s there are two standard choices:
PPTP and L2TP
Depending on what you are trying to do, you would choose the appropriate one.
PPTP port 1723 TCP or PPTP port 1723 UDP
L2TP port 1701 TCP or L2TP port 1701 UDP

Each one of these provides a different level of authentication, security and encryption.
You can safely rule out the UDP options here, because you probably want a true tunnel (end to end).
Now the big question is how secure you want to be??