Hello all,
I was recently doing an installation of a router/firewall combo for a friend of mine in Drogheda and found that I couldn't get my device to pass in ANY traffic.
I had wanted to put in a simple IP camera that would listen on port 2050 (or similar) internally, and then pass any port 2050 traffic from the internet directly to this device by NATting into the LAN IP address of the camera.
I had two firewall devices with me - one provided by my mate and another that I
know works - it's in use since then as a temporary measure for one of my clients (different provider - Eircom, sitting behind a low end Cisco Router), doing exactly the same job.
When the first device wouldn't play ball, I decided to use the second one, blaming faulty kit - to no avail.
Anyone know if
IBB have started blocking traffic on specific ports? The camera was listening and responding happily on port 2050 internally. I had some colleagues run port scans against the IP address on which I was presenting to the internet, and I used GRC to test whether or not the specified port was open. All reported that there was no device listening on the "far end".
I tried a couple of different ports - but there were no packets passed through to the internal address. I know that the config of the appliances were right - I work with them nearly all day every day - and also the second device has been used elsewhere for the same task with very little reconfiguration work.
The connection speeds were fine - 1.8Mb up and 1.75Mb down - just no pass through of packets.
I can't think of any other possible explanation for the difficulty. Any ideas anyone?