ddns updates

[junglejim42 0]

before I ask for serious help, how often should my avtech 760's ( I have 2) update my ddns account IP address or check it, nothing has changed in the last 24 hours.

[Scruit 0]

before I ask for serious help, how often should my avtech 760's ( I have 2) update my ddns account IP address or check it, nothing has changed in the last 24 hours.

 

I'm not a CCTV professional, but I was a network administator for a few years.

 

Confused... Dynamic DNS is used in cases where your IP on the public internet can change (DHCP address given by ISP) Sometimes is chances with every dialin, sometimes once a month etc.

 

If you have two DVRs at your place then unless you have two seperate ISP connections then you must have a router or firewall.

 

The public ip of the router/firewall is the one that will change as a result of the new IP address from your ISP. THe DDNS setup would therefore be done on the router/firewall itself. Then the router/firewall will have to be configured to expose the port required# for the DVR and route the traffic to the DVR, which should have an internal IP in the ranges 10.x.x.x, or 192.168.x.x. The second DVR woudl need to be configured in the same way, just using a different public port#.

 

If you are having trouble withthe internal DHCP settings for your DVR then look into using a reserved DHCP address (reserved by MAC) or excluding some addresses fromt he DHCP range and using hard-coded IPs for the DVRs.

[junglejim42 0]

DDns account set up.

 

using the video server software supplied, under

 

System settings-network-DDNS

 

there is the option to enable DDNS and enter your login details etc for the DDNS account. I presume this allows my DVR to update my DDNS account with my current external IP address.

[junglejim42 0]

screenshot attached