D-Link DSR-150 DSR-150 User Manual - Page 82

Unified Services Router User Manual 4.6 Wireless distribution system (WDS) Setup > Wireless Settings > WDS W ireles s dis tribution s ys tem is a s ys tem enabling the wireles s interconnection of acces s points in a network. This feature is only guaranteed to work only between d ev ices o f t h e s ame t y p e . Figure 49: Wire le s s Dis tribut ion Sys te m  Th is feat u re is o n ly g uaranteed t o wo rk o n ly b etween d evices o f t h e s ame t y p e (i.e. u s in g t h e s ame ch ip s et / d riv er). Fo r examp le b et ween t wo DSR250N b o xes , o r between two DSR1000N. It s hould als o interoperate between a DSR 1000N and DSR 500 N b o xes s in ce t h ey are b as ed o n t h e s ame ch ip s et / d riv er. W h en t h e u s er en ab les t h e W DS lin ks u s e t h e s ame s ecu rit y co n fig u rat io n as t h e d efau lt access p oin t . Th e W DS lin ks d o n o t h ave t ru e W PA /WPA 2 s up port , as in t h ere is n o W PA key h an d sh ake p erfo rmed . In stead t h e Ses sion Key t o b e u s ed wit h a W DS Peer is co mp u t ed u sing a h as h in g fu n ct io n (s imilar t o t h e o n e u s ed fo r co mp u t in g a W PA PM K). Th e in p u t s t o t his fu nctio n are a PSK (co n fig u rab le b y an ad mi n is t rat o r fro m t h e W DS p ag e) an d an in t ern al " mag ic" s t rin g (n o n -co n fig u rab le). In effect t h e W DS lin ks u s e TKIP/ A ES en cry p t io n , d ep en d in g o n t h e en cry p t io n co n fig u red fo r t h e d efault A P. In cas e t h e d efau lt A P u s e s mixed en cry p t io n (TKIP + A ES).Th e W DS lin k will u s e t h e A ES en cry p t io n s ch eme. 80