Billion Electric Company 7300M Manual Do Utilizador

 

In addition to specifying the port number used, you also need to specify the protocol used. 

The protocol is determined by the particular application. Most applications use TCP or UDP, 

however you can specify other protocols using the drop-down Protocol menu. Setting the 

protocol to “all” causes all incoming connection attempts using all protocols on all port 

numbers to be forwarded to the specified IP address. 

DMZ: The DMZ Host is a local computer exposed to the Internet. When setting a particular 

internal IP address as the DMZ Host, all incoming packets are checked by the Firewall and 

NAT algorithms, then passed to the DMZ host when a packet received does not use a port 

number in use by any other Virtual Server entries. 

 

 

 

 

 

 

 

Using port forwarding does have security implications, since outside users

are able to connect to PCs on your network. For this reason you are

advised to use specific Virtual Server entries just for the ports your

application requires instead of simply using DMZ or creating a Virtual

Server entry for “All” protocols, as doing so results in all connection

attempts to your public IP address accessing the specified PC. 

 

 

 

 

If you disable the NAT option in the WAN-ISP section, the Virtual Server 

function becomes invalid.

 

 

 

 

 

 

 

 

If the DHCP server option is enabled, you have to be very careful in

assigning the IP addresses of the virtual servers in order to avoid conflicts.

The easiest way of configuring Virtual Servers is to manually assign a

static IP address to each virtual server PC, with an address that does not

fall into the range of IP addresses that are issued by the DHCP server. You

can configure the virtual server IP address manually, but it must still be in

the same subnet as the router.