Multicast - GeoVision GV-VS02 User Manual

need to enter the IP address into your browser. If you use the UMTS connection with
dynamic IP addresses, first use the DDNS function to get a domain name linking to the
GV-Video Server's changing IP address. For details on the DDNS, see 4.7.3 Advanced
TCP/IP.
Maximum Transmission Unit: Type the Maximum Transfer Unit (MTU). The default
value is 1500.
Retain UMTS Connection: Select this option to check the UMTS connection status
and use the drop-down list to specify the desired time length for check frequency. The
GV-Video Server will rebuild the connection if disconnection is detected.
Check VPN Connection: (Note this option is only available for GV-VS02A and GV-
VS12.) Select this option to check the VPN (Virtual Private Network) connection status.
To check the IP address, type the target IP address in the Check Target IP Address
field.
3G Connection Status: (Note this option is only available for GV-VS02A and GV-
VS12.) Indicates the connection status of UMTS or VPN.

4.7.5 Multicast

Note this function is only available for GV-VS02 (Firmware Version 1.46).
The multicast provides a mechanism for sending a single video and audio stream to a
group of hosts. Only the hosts that have joined a multicast group can send and receive the
multicast streams. And the multicast streams are sent only to hosts on a local network.
This configuration page provides two settings. One is to allow the GV-Video Server to join
a multicast group. The other is to allow the GV-Video Server to receive audio broadcasting
from other hosts in a multicast group.
Important: The Multicast function only works when the video resolution is set to CIF (360
x 240 / 360 x 288) or QCIF (176 x 112 / 176 x 144).
Administrator Mode
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