DVR / DNS issues

Thread: DVR / DNS issues

  1. mrphil's Avatar

    mrphil said:

    Default DVR / DNS issues

    Hi all

    trying to setup my cctv to the internet...

    im getting

    Test Gateway..... OK
    Test Network..... OK
    Test DNS.....ERR

    im with sky, and currently have the network settings set to

    Netcard: wire netcard
    DHCP enable: unticked
    IP address: 192.168.0.5
    Subnet mask: 255.255.255.0
    Gateway: 192.168.0.1
    Primary DNS: 90.193.78.25
    Secondary DNS: 90.193.78.25
    Media port: 8000
    HTTP port: 85
    HS download: unticked
    Transfer policy: quality preferred

    complete newbie here so if someone has the patience and kindness to guide me that would be appreciated!

    thanks in advance
     
  2. Over Carl's Avatar

    Over Carl said:

    Default Re: DVR / DNS issues

    I noticed your primary/secondary DNS is 90.193.78.25

    Try changing it to

    Primary: 192.168.0.1
    Secondary: 8.8.8.8

    Test with that config and let me know how you get on. If you hate google (for privacy or other reasons), use 4.2.2.1 as secondary.

    Just wondering, why 90.193.78.25 for DNS?


    Also once you have got the DNS bit sorted, I would suggest changing the IP from 192.168.0.5 to something much higher.

    Your router uses a protocol called DHCP to give out IP addresses from a pool. Often routers are configured so the first address 192.168.0.1 is reserved for router, and the DHCP pool will hand out addresses from 192.168.0.2-192.168.0.254.

    I would suggest making the pool smaller (e.g. 199 addresses from 192.168.0.2-192.168.0.200) as I suspect 199 is more than enough devices. Then 192.168.0.201-192.168.0.254 will never be given to any devices. Then setup your camera with an address in the 192.168.0.201-192.168.0.254 range so there is no chance of another device being given the same IP address as your camera via DHCP. If you have two devices on same network with same IP address, you will have fun and games.

    In theory the problem I mentioned of IP address clash should never happen, I think router is supposed to send out ARP packets to confirm whether an IP address is in use, but I have seen this issue a few times myself in real life.
    Last edited by Over Carl; 18th March 2017 at 06:23 PM.
     
  3. mrphil's Avatar

    mrphil said:

    Default Re: DVR / DNS issues

    I'll be damned!
    changed DNS to what you said and it works!

    cctv now on my phone working perfectly. Can't thank you enough!