VPN and Cisco 678

[nashby]

Trouble getting data to pass through. I was told that ports 500 2050 and 10001 needed to be opened up in Cisco. I issued 3 entries (one for each port) similar to:

set nat entry add 10.0.0.2 500 xxx.xxx.xxx.xxx 500 udp

Does this open up the ports for VPN? The x's were my current IP from the ISP but doesn't that change if it is dynamic? I'm sure that I'm missing something since it doesn't work.

 

[ChicagoTechNet]

Just fixed the VPN problem of the Cisco 678 last week. The ports should be TCP Port 1723, IP Protocol 47 (GRE). quoted from

http://www25.brinkster.com/ChicagoTech

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 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.


Robert Lin, MS-MVP, MCSE & CNE
Windows, Network and How to at

http://www25.brinkster.com/ChicagoTech