Hello,

I am attempting to setup my office PC (windows XP pro) to accept incoming
VPN connections. (Incoming connections have been allowed)
I want to use my laptop to connect to my pc.

The office has linksys RTP300 router (ports 47, 1723 & 1701 are forwarded to
the PC). Remote users have been specified on the office pc.). Typically, the
router that I will access the office is from a netgear WGT624v3, although it
could be from any router. The same ports have been opened and forwarded to
the laptop on this router, although I think this is probably an unnecessary
step.

The issue that I am having is that when I try to connect to the office, I
get the "verifying username and password" message, and then I get error 721.
I have reviewed many help sources (mainly googled the error number and tried
to figure out what the problem is... no luck, hence posting here).

I disabled all firewalls to attempt without firewall protection, get the
same error.
I ran the pptpsrv and pptpclnt in the support tools and although the
programs load they don’t receive the text when entered.

I have no clue in networks/protocols, I have only just figured how to
forward ports, so in your reply please be descriptive of what tasks I must do
to solve this issue.

Is windows XP Pro capable of being a VPN server?
Where is the GRE 47 protocol, is it on the router, or server side? (How do I
know if my router is cable of this protocol)?
I read about using DMZ, although I am told that it is unsafe; plus I have no
clue how to use it, or set it up.

Please help; (please explain in simple terms, if at all possible).

TIA
Lee