D-Link DWC-1000 User Manual - Page 213
List of Available Application Rules showing 4 unique rules
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Wireless Controller User Manual t rig g erin g wait s fo r an o u t b o u n d req u es t fro m t h e LA N/ DM Z o n o n e o f t h e d efin ed o u t g o ing p ort s, an d t h en o pens an in co min g p ort fo r t h at s pecified t y pe o f t raffic. This can b e t h o u g h t o f as a fo rm o f d y n amic p o rt fo rward in g wh ile an ap p licat io n is t ran s mit t in g d at a o v er t h e o p en ed o u t g o in g o r in co min g p o r t (s ). Po rt t rig g erin g ap plicat ion ru les are mo re flexib le t h an s t at ic p o rt fo rward in g t h at is an available option when configuring firewall rules . This is becaus e a port triggering ru le d o es n o t h ave t o referen ce a s p ecific LA N IP o r IP ran g e. A s well p o r t s are n o t left open when not in us e, thereby providing a level of s ecurity that port forwarding does not offer. Po rt t rig g erin g is n o t ap p ro p riat e fo r s erv ers o n t h e LA N, s in ce t h ere is a d ep en d en cy o n t h e LA N d ev ice makin g an o u t g o in g co n n ect io n b efo re in co min g p o rt s are o p en ed . So me ap p licat io n s req uire t h at wh en ext ern al d ev ices co n n ect t o t h em, t h ey receiv e data on a s pecific port or range of ports in order to function properly. The controller mu s t s en d all in co min g d at a fo r t h at ap plicatio n o nly o n t he req uired p o rt o r ran g e o f p o rt s . Th e co ntro ller h as a lis t o f co mmo n ap p licat io ns an d g ames wit h co rrespo ndin g o u t b o und an d in b ou nd p o rt s t o o p en . Yo u can als o s p ecify a p o rt t rig g erin g ru le b y d efin in g t h e t y p e o f t raffic (TCP o r UDP) an d t h e ran g e o f in co min g an d o u t g o in g ports to open when enabled. Figure 115: Lis t of Available Applicat io n Rule s s howing 4 unique rule s 211