VPN Port

[Chris_Z]

Just setting up Routing and Remote Access.. I think the VPN port is 1723 but I'm not too sure. Can someone verify this?



Thanks,


Chris

[waytallgel]

Aye, I believe it's Microsoft's port for PPTP.

[steve.milner]

Ignore this it's absolute waffle - I should actually wear my glasses!


The port number depends of your OS.

If it's a micro$haft OS then it's port 5900

If it's a *nix system it depends on what display the VNC server is running

5900 for display :0
5901 for display :1
5902 for display :2
etc.

For more info look here: http://www.tightvnc.com/

[slarty]

Steve - you're confusing VNC and VPN.

they are totally different.

Slarty

[steve.milner]

Originally posted here by slarty
Steve - you're confusing VNC and VPN.

they are totally different.

Slarty

How right you are - Sorry folks it's a little too early in the morning for me.

Steve

[oxygen]

you're right waytallgel, thats the port number for PPTP, designed my M$ and is supported by all windows OS's. Another port you can use is L2TP which is more secure because of IPSec.

[nebulus200]

VPN's are unfortunately not all the same. What client/server are you using and what protocol (i.e., GRE, IPSEC, etc)?

/nebulus

[deftones12]

What kinda software are you using for the client and server??? I've only had experience with Novell Bordermanager VPN's.

[gunit0072003]

There are 3 main flavors of VPN:
PPTP
L2TP
IPSEC

back I beleive in 1995 Microsoft wanted to standardise PPTP
and Cisco at same time wanted to standardse thier L2F..
L2TP emerged out if that,,,

Then came ofcourse IETF(internet enginnering task force ) and standardised IPSEC and made it so much more frikin complicated..any time you have a bunch of roosters who all cant
agree on one way of doing something end up with including a little of everything..

IPSEC is not one protocol it is a framework of open standards for ensuring secure private communications over IP networks. It is however the industry standard and the most secure
of all 3.

Anyway PPTP yes uses I believe port 1723/TCP , however PPTP traffic consists of a TCP connection for tunnel maintenance and GRE encapsulation for tunneled data.
I believe GRE is procol 47 (not sure #)

Cheers.

[nebulus200]

Originally posted here by gunit0072003
There are 3 main flavors of VPN:
PPTP
L2TP
IPSEC

back I beleive in 1995 Microsoft wanted to standardise PPTP
and Cisco at same time wanted to standardse thier L2F..
L2TP emerged out if that,,,

Then came ofcourse IETF(internet enginnering task force ) and standardised IPSEC and made it so much more frikin complicated..any time you have a bunch of roosters who all cant
agree on one way of doing something end up with including a little of everything..

IPSEC is not one protocol it is a framework of open standards for ensuring secure private communications over IP networks. It is however the industry standard and the most secure
of all 3.

Anyway PPTP yes uses I believe port 1723/TCP , however PPTP traffic consists of a TCP connection for tunnel maintenance and GRE encapsulation for tunneled data.
I believe GRE is procol 47 (not sure #)

Cheers.

I guess that is what I get for trying to throw that out there too quick. I meant ESP, not IPSEC.

GRE is protocol 47. ESP is protocol 50. There is another one that is 51 but I forget which...AH?

Here is a good link I found while trying to remember what 51 was:
http://www.firewall-1.org/2002-10/msg00842.html

Regardless, the most common protocols I have seen are GRE and ESP with VPN clients.


/nebulus