D-Link DSR-150N DSR-150 User Manual - Page 91

Unified Services Router User Manual  Ext ern a l IP ad d ress: Th e ru le can b e b o un d t o a s p ecific W A N in t erface b y s elect in g eit h er t h e p rimary W A N o r co n fig urab le p o rt W A N as t h e s o u rce IP ad d res s fo r in co min g t raffic.  Th is ro u t er s up port s mu lt i-NA T an d s o t h e Ext ern al IP ad d res s d o es n o t n ecessarily have to be the W AN addres s . On a s ingle W AN interface, multiple public IP ad d res ses are s u ppo rted. If y o u r ISP as s ig ns y o u mo re t h an o n e p u b lic IP ad d res s , o n e o f t h es e can b e u s ed as y o u r p rimary IP ad d res s o n t h e W A N p o rt , an d t h e o t h ers can b e assig ned t o s erv ers o n t h e LA N o r DM Z. In t h is way t h e LA N/ DM Z s erver can be acces s ed from the internet by its alias ed public IP addres s . 7. Outbound rules can use Source NAT (SNAT) in order to map (bind) all LAN/DMZ traffic matching the rule parameters to a specific WAN interface or external IP address (usually provided by your ISP). On ce t h e n ew o r mo d ified ru le p aramet ers are s av ed , it ap p ears in t h e mas t er lis t o f firewall ru les . To en ab le o r d is ab le a ru le, click t h e ch eckb o x n ext t o t h e ru le in t h e lis t o f firewall ru les an d ch o o s e En ab le o r Dis ab le.  The router applies firewall rules in the order lis ted. As a general rule, you s hould mo v e t h e s t rict est ru les (t h ose wit h t h e mo s t s pecif ic s erv ices o r ad d res s es ) t o t h e t o p o f t h e lis t . To reo rd er ru les , click t h e ch eckb o x n ext t o a ru le an d click u p o r down. 89