You can configure settings to allow packets to be forwarded to systems running behind the firewall. These settings are for systems using IPv4.
- Choose Security from the Configuration Menu.
Scroll to Forwarding WAN Firewall Settings.
Configure settings using the information in the following table as a guide. When you have finished configuring settings, click Submit to make your changes take effect.
Forwarding WAN Firewall Parameters
Item Description Forwarding WAN Firewall Settings
Tip: Use CLI to view the active firewall logs in /var/log/messages.
Enable PPTP Sever Pass-Through
Select the Enable PPTP Server Pass-through checkbox to allow TCP port 1723 to be forwarded through the system to the defined PPTP Server IP Address.
The server is placed on the LAN side with a private IP address, which allows Windows PPTP to pass through to a Windows server but firewalls the server from other traffic.
Caution: Enabling the PPTP server pass-through and the PPTP server on this system can cause intermittent behavior on both servers. It is recommended that only one server be enabled at a time.
PPTP Server IP Address
Enter the private PPTP server IPv4 IP address. All outside users will access the PPTP server using the system’s public IP address. The Windows server has a private IP address, which the system handles using NAT.
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