H
Hugh Johnson
I am trying to set up my Windows XP Pro System as a VPN so that when I
am away on business I can connect to my pc through the hotels high
speed internet connection. I am connecting with a laptop running
Windows 2000.
I set up my XP box using the instruction here:
http://www.onecomputerguy.com/networking/xp_vpn_server.htm
I set up my laptop using the "Make New Connection Wizard" in 2000. I
have a Netgear MR814v2 router connected to my cable modem. When I am
at home and behind my router I can connect to my VPN by using my
private ip address (192.168.0.X) and everything works fine.
Since I am at home and can't really test it by getting outside of my
home connection, I tried changing the ip address of my laptop to my
public routers ip address. The web page above mentions in step 20 to
forward port 1723 which I did. Again, I can connect behind my router
but I can't hit my public ip and get a connection.
Step 20 also talks about ports 500, 50, and 51, so I forwarded those
too. Still can't connect outside. It also talks about configuring
the router for pptp passthrough but I cannot find a setting for that.
Thinking that perhaps my router can't handle this, I found the
following web page:
http://kbserver.netgear.com/kb_web_files/n101222.asp which seems to
state that the router (MR814v2) can support at least one connection.
I don't quite understand all the stuff at the top of the page which I
will paste here:
This document describes VPN support by model as tested by NETGEAR.
Depending on your ISP's configuration and other issues, you may need
to open ports for passthrough to work. The ports are:
" IPSec: 500
" L2TP: 1701 and 500
" PPTP: 1723 and 500
Each VPN passthrough must have its own 500 port open. The first port
is opened normally, as described in port forwarding documents. The
other instances of port 500 must each be opened by selecting a unique
range of ports that include 500, e.g., 499-501, 498-502, etc.
Note that "VPN Pass Through Connections" is the total number of
tunnels of any type supported. For example, the first model supports 1
IPSec or 1 L2TP or 1 PPTP pass through (not three).
On my router I currently have the following ports forwarded:
1701, 1723, 499-501
I do NOT have any firewall software on either PC and I do not have the
Windows Firewall enabled either.
When I try to connect from my laptop, this is the error I get:
"Error 781: The encryption attempt failed because no valid certificate
was found"
Again, I can connect when behind the router using my private ip, so I
know the VPN connection works, but I can't get it to work over the
router. Should it work if I am attempting (while behind my router) to
go outside and come back in?
Does anyone have any suggestions?!
am away on business I can connect to my pc through the hotels high
speed internet connection. I am connecting with a laptop running
Windows 2000.
I set up my XP box using the instruction here:
http://www.onecomputerguy.com/networking/xp_vpn_server.htm
I set up my laptop using the "Make New Connection Wizard" in 2000. I
have a Netgear MR814v2 router connected to my cable modem. When I am
at home and behind my router I can connect to my VPN by using my
private ip address (192.168.0.X) and everything works fine.
Since I am at home and can't really test it by getting outside of my
home connection, I tried changing the ip address of my laptop to my
public routers ip address. The web page above mentions in step 20 to
forward port 1723 which I did. Again, I can connect behind my router
but I can't hit my public ip and get a connection.
Step 20 also talks about ports 500, 50, and 51, so I forwarded those
too. Still can't connect outside. It also talks about configuring
the router for pptp passthrough but I cannot find a setting for that.
Thinking that perhaps my router can't handle this, I found the
following web page:
http://kbserver.netgear.com/kb_web_files/n101222.asp which seems to
state that the router (MR814v2) can support at least one connection.
I don't quite understand all the stuff at the top of the page which I
will paste here:
This document describes VPN support by model as tested by NETGEAR.
Depending on your ISP's configuration and other issues, you may need
to open ports for passthrough to work. The ports are:
" IPSec: 500
" L2TP: 1701 and 500
" PPTP: 1723 and 500
Each VPN passthrough must have its own 500 port open. The first port
is opened normally, as described in port forwarding documents. The
other instances of port 500 must each be opened by selecting a unique
range of ports that include 500, e.g., 499-501, 498-502, etc.
Note that "VPN Pass Through Connections" is the total number of
tunnels of any type supported. For example, the first model supports 1
IPSec or 1 L2TP or 1 PPTP pass through (not three).
On my router I currently have the following ports forwarded:
1701, 1723, 499-501
I do NOT have any firewall software on either PC and I do not have the
Windows Firewall enabled either.
When I try to connect from my laptop, this is the error I get:
"Error 781: The encryption attempt failed because no valid certificate
was found"
Again, I can connect when behind the router using my private ip, so I
know the VPN connection works, but I can't get it to work over the
router. Should it work if I am attempting (while behind my router) to
go outside and come back in?
Does anyone have any suggestions?!