Java or c# (on win ce) How to find ip address of my camera ip

Question

how can I find ip address of my camera ip. Camera is connected by dhcp, so every time it is connected ip address is different. I can find ip address using "Ip Camera Finder" (witch shows all cameras connected, next question, how this program works?) but I need to do this from java (android) or c# (win ce).

Answer 1

Normally the IP cameras have control port number in the range: 8150 - 8350.

The IPCam Finder will scan the IPs in local Network which have opened ports in above range.

For your case, you can use Addres Resolution Protocol ARP - a or RARP command to find your MAC address of your IP Camera.

Then in your program, hardcode the MAC address and find the bound IP Adress.

With programming in C#, refer to: www.mostthingsweb.com/2011/11/reading-arp-entries-with-c/

Another way: You can always register a Fix IP Address in DHCP pool for your Camera by configuring Reservation in DHCP server (map fix IP to a specified MAC address).

Answer 2

Well havent been here some time, I did found the answer to my question, here it is:

void SendCamData() {
        SendCamSearch();
        ReceiveCams();
    }

void SendCamSearch() {
        udpC = new UdpClient();
        try {
            udpC.Send(MessForCamsByte, MessForCamsByte.Length, CamsIpEndPoint);
        } catch (Exception e) {
            Console.WriteLine("Blad wysylanie search cam - " + e.ToString());
        }
    }

    void ReceiveCams() {
        if (udpC != null) {
            listener = new Thread(UdpReceiveThread);
            listener.IsBackground = true;
            listener.Start();
            listener.Join(2000);
            SendCamIpAndPort(CamsValsBuilder.ToString());
        }
    }

and the best part was this message

    string MessForCams = "4d4f5f490000000000000000000000040000000000000000000001";