I'm installing lot of video surveillance systems with DVRs connected to Internet. I set port forwarding in router's setup (DDNS service is set in DVR) and everything works fine until ISP remotely resets router to factory default settings, which happens from time to time. Is there a way to make some kind of a script which could automatically set port forwarding back in such a case. Routers are Thomson TG782i, Gigaset SX763 and Thomson Speedtouch ST780i