I just found the answer after searching other forums. On the SBG6580, you must *not* enter your external IP address in the port forwarding entry. Instead ... set it to 0.0.0.0 and the router will interpret that as using its own current IP address: LOCAL IP ADDRESS = 192.168.15.10 LOCAL START PORT = 80 LOCAL END PORT = 80 -- EXTERNAL IP ADDRESS = 71.197.XXX.XXX (ENTERING THE ROUTERS IP ADDRESS HERE DOES NOT WORK!) EXTERNAL IP ADDRESS = 0.0.0.0 (THIS WORKS) EXTERNAL START PORT = 8081 EXTRNAL END PORT = 8081 -- PROTOCOL = BOTH (TCP & UDP) ENABLED = YES
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I have an IP camera which I would like to access over the internet. I have Comcast internet service and Motorola SURFboard SBG6580 modem with current firmware. I successfully signed up for dynamic DNS service with Dyndns and can route to my Comcast IP address (semi-static, hasn’t changed in over a year, but did DDNS so I wouldn’t have to worry about it in the future). However, I cannot seem to get port forwarding working on Motorola Surfboard modem to the outside world. 1. My IP camera has a local IP address 192.168.15.10 on port 80. I can access it from the browser on any PC in my house. 2. Under the ‘Port Forwarding’ tab of my SURFboard modem I created the following entry for the camera to my Comcast IP address on port 8081: LOCAL IP ADDRESS = 192.168.15.10 LOCAL START PORT = 80 LOCAL END PORT = 80 -- EXTERNAL IP ADDRESS = 71.197.XXX.XXX EXTERNAL START PORT = 8081 EXTRNAL END PORT = 8081 -- PROTOCOL = BOTH (TCP & UDP) ENABLED = YES 3. Now, I can enter http://mydomain.dnsalias.com:8081/ into any of my home PC’s and access the camera properly. 4. However, I can’t access it from any outside internet connection. I tried several PC’s with different connections – no success. Using either http://mydomain.dnsalias.com:8081/ or even directly with my current IP address http://71.197.xxx.xxx:8081/. I’ve also tried ports other than 8081 (such 81, 82) in case Comcast was blocking them (but found a list on the Comcast website indicating they aren’t being blocked). What am I missing? Is there some other Firewall rule or otherwise in the SURFboard SBG6580 modem that’s stopping it? Since the ethernet IP camera(Sony DH210) is standalone, the only firewall that should matter is in SBG6580 (not any of my other PC’s). In the Firewall tab on the modem it says ‘No Ports Restricted’. I don't see any other settings that seems relevant. What am I missing?
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