Tue Jan 08, 2019 3:19 pm
#1663733
Could someone give me an idiots guide to how all of these things link together? Or even give me a url that does explain it? I’m trying to knock a hole in my firewall to enable an iOS app to link through to my CCTV DVR, but I think what is hindering me is not really understanding what all of things do in relation to each other.
I have a fixed (external) IP, and have given my CCTV DVR a fixed (internal) IP; but I don’t understand how the Ports or NAT relate to all of this.
Am I right to think that I need to :-
Or have I got that all wrong?
Is it necessary for both ends (port numbers) of the NAT to be the same (ie :1234 in the example above)?
Where does the "Default HTTP port :80" come in to all of this?
Please bear in mind my tech skills are limited
TIA
I have a fixed (external) IP, and have given my CCTV DVR a fixed (internal) IP; but I don’t understand how the Ports or NAT relate to all of this.
Am I right to think that I need to :-
- give the CCTV both a fixed internal IP address AND a port number (for example, :1234 or something equally obscure)
knock a whole in the firewall for that port or the internal IP or both???
tell the router to route anything that attempts to come in on my external IP (say 123.456.7.89:1234 ) to go through to the CCTV DVR on (say 192.168.1.102:1234 ). This step being the NAT?
Or have I got that all wrong?
Is it necessary for both ends (port numbers) of the NAT to be the same (ie :1234 in the example above)?
Where does the "Default HTTP port :80" come in to all of this?
Please bear in mind my tech skills are limited
TIA