3Com 3CR858-91 User Guide - Page 63
DMZ, MAC Address
UPC - 662705490946
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Firewall 63 To set up MAC Address Filtering, do the following: 1 Select Firewall from the main menu, then select MAC Address Filtering from the sub-menu. The MAC Address Filtering screen displays (Figure 42). Figure 42 MAC Address Filtering 2 To enable this feature, click the Enable radio button. 3 Enter the MAC address of each client on your network that you want to allow network access in the MAC Address text boxes. Alternatively, you can copy a MAC address into the MAC Address text box, as follows: a Select the name of the computer from the DHCP Client List b Select a row ID from the Copy To drop-down list c Click on Copy To. The MAC address is inserted into the selected row. 4 Click Apply to save the settings. DMZ If you have a client PC that cannot run an Internet application properly from behind the firewall, you can open the client up to unrestricted two-way Internet access. This may be necessary if the NAT feature is causing problems with an application such as a game or video conferencing application. CAUTION: Use this feature on a temporary basis. The computer in the DMZ is not protected from hacker attacks.