I have setup a stand alone Windows 2000 VPN server, we are using a DSL connection to 
access the internet and a Linksys Router to route traffic between our subnet and the 
internet.

The router configuration is the following:
DHCP is disable
the server and the router are in the same subnet.
I am forwarding incoming PPTP traffic at the router to go to the External NIC on the 
VPNSERVER (ports 1723 and 47)

The VPNSERVER configuration:
two NICs one internal and the other one external
the internal does not have a gateway assigned (recommended by Microsoft)
The External has the router's IP as the gateway.
all the devices are in the same subnet and IP range.
The VPN server is configure to assigned IP addresses to the VPN clients.
we are not using  RADIUS
I have created local accounts in the VPN server for the VPN clients and under their 
Dial in properties I enable allow remote access.

The problem is when I VPN to the server I login successfully and can see everything in 
the VPNSERVER, I can also ping the VPN server Nics (internal and External). However, 
every time I try to PING or access any other PC or server in the same subnet I get 
request time out, I cannot see any resources outside the VPNSERVER. All the devices 
inside the subnet can ping the internal VPNSERVER nic with no problem and vise versa.

I have check some tech notes from Microsoft and they mentioned GRE packets been filter 
by our ISP. not the case GRE is not filter by our ISP.


Thanks,



Juan Rosas

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