How to set up VPN with 3COM Router?

[BJH]

Hi

I'm going to have a go at setting up VPN at my Office where I've got a
Windows XP machine connected to a 3COM ADSL Wireless Router.

I've asked my ISP to allocate a block of 4 IP addresses and I've had a look
at "Windows XP Inside Out" by Ed Bott which has a chapter devoted to
allowing remote access via a Virtual Private Network.

I can see that I'll come unstuck setting up both the Router and maybe Zone
Alarm Firewall!

I've seen remarks about "VPN Passthrough" and a 3COM router but I haven't
been able to find anything specific to my 3COM router.

So if anyone has had any experience with a 3COM router and Zone Alarm
setting up VPN I'd really like to hear from you.

 

[Venkatesh [MS India Community Star]]

To allow VPN traffic via the ADSL router, access the 3com router setting
page and open ports 500 and 1723 using the port forwarding option.