UTT Technologies Chapter 12 VPN
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Remote Subnet Mask:
It specifies the subnet mask of the remote network.
Save:
Click it to save the PPTP server settings.
12.1.4 Notes on Configuring PPTP Client and Server
1. During PPTP tunnel establishment, both endpoints of the tunnel will use a
virtual interface to communicate with each other. In most cases, the PPTP server will
automatically assign an IP address from the VPN address pool to the virtual
interfaces. Note that the local and remote virtual interfaces should use the same
subnet mask.
2. PPTP uses the registered TCP port 1723 to transmit control messages.
When NAT is enabled on the UTT VPN gateway, in order for the IPSec tunnel to be
established and function properly, the UTT VPN gateway will automatically create two
port forwarding rules after you have configured a PPTP server or client entry. You can
go to the
NAT > Port Forwarding
page to view them in the
Port Forwarding List
: ID
is pptp, protocol type is TCP, and port is 1723. To avoid failing to establish the PPTP
tunnel, please do not edit or delete them.
3. You had better set the remote IP addresses, local IP addresses, and IP
addresses in the VPN address pool to the different subnets.
12.1.5 PPTP List
After you have configured a PPTP entry, you can view its configuration and status in the
PPTP List
, see Figure 12-8.