SubVIS Orca II - User Manual
IMENCO AS
Visiting Address:
Kophaug 3, 5570 Aksdal, Norway
Office: +47 52 86 41 00
Org No: 923 005 749 MVA
Mail Address:
PO. Box 2143, 5504 Haugesund, Norway
Fax:
+47 52 86 41 01
www.imenco.com
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4.5.3
Network address
The camera can obtain its network address automatically through DHCP, but the client that wants to
connect to the camera may have difficulty to find which address the camera was assigned.
If the camera is connected to the DHCP service in a private network, then its host number (xxx, yyy in
this table) will be unknown for a potential camera client on the same network:
10.
0-255. xxx.
yyy
172.
16-31. xxx.
yyy
192.
168.
xxx.
yyy
The default setting of the camera is therefore a fixed network address selected by the user.
The fixed network address configuration of one device is not recommended in a DHCP controlled
network since it can cause address conflicts with other devices on the same network.
Running the camera on your office network is not advised because of the large and constant data
output. The intended use of the Orca II camera is to assign each camera a fixed network address
within a closed network.
4.5.4
IP address discovery
The camera includes a feature for clients to discover its address. The camera is listening to multicast
group 224.73.xx.xx, port <yyy> and looks for “IMCN_ENQ” in the 8 byte header received on that port.
On having received one such message the camera will output a response message to the same
group and port containing its name and identities as well as it current IPv4 address.
Contact Imenco for details on this feature.
The SmartView can detect cameras on the network using this mechanism.
4.5.5
Multicast
Video streaming is set to multicast mode by default. Some older network hardware might not
support this. The camera can be set to stream the video in unicast mode.
4.5.6
Video streaming
The protocols involved are RTSP, RTP and RTCP. The bulk of video data is sent in the RTP protocol.
Streaming can be started without using the session control protocol RTSP when the client has prior
knowledge of the camera details.