Netgear FVS338 사용자 설명서

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Firewall Protection and Content Filtering

3. Build your list of Source MAC Addresses to be block by entering the first MAC address in the 

MAC Address field in the form xx:xx:xx:xx:xx:xx where x is a numeric (0 to 9) or an 
alphabet between and a and f (inclusive), for example: 00:e0:4c:69:0a:

4. Click Add. The Mac Address will be added to the Available MAC Addresses to be Blocked 

table. (You can edit the MAC address by clicking Edit in the Action column adjacent to the 
MAC Address.)

5. Click Reset to cancel a MAC address entry before adding it to the table.

6. When you have completed adding MAC addresses, click Apply to save your settings

Port triggering allows some applications running on a LAN network to be available to external 
applications that would otherwise be partially blocked by the firewall. Using this feature requires 
that you know the port numbers used by the Application. 

Once configured, Port Triggering operates as follows: 

1. A PC makes an outgoing connection using a port number defined in the Port Triggering table. 

2. The VPN firewall records this connection, opens the an INCOMING port or ports associated 

with this entry in the Port Triggering table, and associates them with the PC. 

3. The remote system receives the PCs request and responds using the different port numbers that 

you have now opened. 

4. The VPN firewall matches the response to the previous request, and forwards the response to 

the PC. 

Without Port Triggering, this response would be treated as a new connection request rather than a 
response. As such, it would be handled in accordance with the Port Forwarding rules: 

•

Only one PC can use a Port Triggering application at any time. 

•

After a PC has finished using a Port Triggering application, there is a Time-out period before 
the application can be used by another PC. This is required because this Router cannot be sure 
when the application has terminated.

Note: For additional ways of allowing inbound traffic, see 

.