D-Link DWC-1000 [240/368] Dynamic port forwarding

D-Link DWC-1000 User Manual 240

Section 8 - Security

Dynamic Port Forwarding

Path:Security>Firewall>DynamicPortForwarding>ApplicationRules

Applicationrulesarealsoreferredtoasporttriggering.ThisfeatureallowsdevicesontheLANorDMZtorequest

oneormoreportstobeforwardedtothem.PorttriggeringwaitsforanoutboundrequestfromtheLAN/DMZ

ononeofthedenedoutgoingports,andthenopensanincomingportforthatspeciedtypeoftrac.Thiscan

be thought of as a form of dynamic port forwarding while an application is transmitting data over the opened

outgoingorincomingport(s).

Porttriggeringapplicationrulesaremoreexiblethanstaticportforwardingthatisanavailableoptionwhen

conguringrewallrules.ThisisbecauseaporttriggeringruledoesnothavetoreferenceaspecicLANIPorIP

range. As well ports are not left open when not in use, thereby providing a level of security that port forwarding

doesnotoer.

Note: Port triggering is not appropriate for servers on the LAN, since there i s a dependency on the LAN device making

an outgoing connection before incoming ports are opened.

Some applications require that when external devices connect to them, they receive data on a specic port

or range of ports in order to function properly. The controller must send all incoming data for that application

only on the required port or range of ports. The controller has a list of common applications and games with

corresponding outbound and inbound ports to open. You can also specify a port triggering rule by dening the

typeoftrac(TCPorUDP)andtherangeofincomingandoutgoingportstoopenwhenenabled.

1. Click Security > Firewall > Dynamic Port Forwarding > Application Rules tab.

Application Rules

2. Right-clickanentryandselecteitherEdit or Delete. To add a new schedule, click Add New Application

Rule.