3Com 3CR858-91 Network Router User Manual


 
64 CHAPTER 5: ROUTER CONFIGURATION
To put a computer in the DMZ, do the following:
1 Select Firewall from the main menu, then select DMZ from the sub-menu.
The DMZ screen displays (Figure 43
).
Figure 43 DMZ Screen
2 Select the ENABLE radio button.
3 The first row in the Public IP Address column defaults to the IP address of
the WAN interface. Enter the last digits of the client PCs IP address in the
Client PC IP Address text box.
4 If you have been assigned more than one IP address for the WAN
interface, then you can enter up to eight different IP addresses in the
Public IP Address text boxes.
5 For each Public IP Address, enter a client PCs IP address in the Client PC IP
Address text box.
6 Click Apply to save the settings.
VPN The Router has a Virtual Private Network (VPN) feature that provides a
secure link between remote users and the corporate network by
establishing an authenticated and encrypted tunnel for passing secure
data over the Internet. The Router supports three modes of VPN
operation:
IPsec (IP Security) — provides IP network-layer encryption. IPSec can
support large encryption networks (such as the Internet) by using
digital certificates for device authentication. When setting up an IPSec