3Com 3CRWE52196 manual Firewall, Virtual DMZ

Firewall 61

6Select 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.

7IP 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.

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

Virtual Servers Selecting the Firewall option on the main menu displays the Virtual Servers setup screen. (Figure 46)

Virtual DMZ

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.