3com 3CRWE52196 User Guide

6 Select an idle time from the Maximum Idle Time drop-down list.

This value will correspond to the amount of idle time (no Internet activity) 
that will pass before the Gateway automatically ends your PPTP session.

7 IP settings must be used when establishing a PPTP connection. Fill in the 

Initial IP Address and the Initial Subnet Mask fields if your ISP has 
provided you with these settings. Alternatively, if the PPTP server is 
located in your DSL modem, click Suggest to select an IP address on the 
same subnet as the PPTP server.

On the main frame of the Firewall setup screen is a menu with four tabs: 
Virtual Servers, Special Applications, PCs Privileges, and Security.

Selecting the Firewall option on the main menu displays the Virtual 
Servers setup screen. (

Figure 46   Virtual Servers Screen

DMZ (De-Militarized Zone) Host is a computer without the protection of 
the firewall. This feature allows a single computer to be exposed to 
unrestricted 2-way communication from outside of your network. This 
feature should be used only if the Virtual Server or Special Applications 
options do not provide the level of access needed for certain applications.

To configure one of your computers as a DMZ host, enter the last digit(s) 
of the IP address of the computer in the IP Address of DMZ Host text box, 
and then click Apply.