Port Forwarding to CCTV Web Server

Hi.  Got a strange problem.   We have this hardware CCTV camera box.  It controls a few surveillance cameras.  You view the cameras via your web browser on port 6000   for example http://192.168.1.1:6000   Now this works fine on the local network but we want to access it from outside.  No problem I thought.  I'll just port forward port 6000 to the internal address.    I've done plenty of port forwarding in my time so I know what I'm doing but in this case we just can't get anything - no initial login or anything.   Now I tried forwarding that port to our NAS drive which has a web interface & it works fine.   Other services work fine too but for some reason I can't seem to get traffic to flow from outside to this particular device.  I tried enabling both TCP & UDP with no luck.  The camera  box is a fixed IP.  

I don't know what more I can do to troubleshoot.   The modem/router is a Billion BIPAC 7800N.

Lee.
lnwrightAsked:
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andrew1812Commented:
Assuming your network connection as follows.

The router is connected to the internet. The LAN interface of the router is connected to a switch where the camera is also connected. You have setup port forwarding on the router to forward all requests coming on port 6000 to the camera. Please correct if I am wrong

You could check the following steps

1.Is the camera configured for a gateway address for routing the response packet ?

2. If it is possible to change the port number on the camera to standard port 80 and then port forward to 80.
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gbblasterCommented:
Can you post a show ip nat trans after testing the connection?
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lnwrightAuthor Commented:
Thanks guys.   I just noticed that in fact the gateway address on the hardware is wrong.   It seems to be pointing to the ISP's gateway rather than the router.  This has to be changed on-site so I'll get someone to do it today.    With the show ip nat command, isn't that only for Cisco routers or will it work for Billions too?
Cheers, Lee.
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gbblasterCommented:
You are correct, I would believe billions also have a translation table so you could try checking that.
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lnwrightAuthor Commented:
That was the problem.  Wrong gateway.
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