74
• Well Known Ports 0 thru 1023
• Registered Ports 1024 thru 49151
• Dynamic and/or Private Ports 49152 thru 65535
So, rather than encounter a port conflict by choosing a port commonly used for another purpose (like port
25 for SMTP mail or port 448 for secure sockets), choose an ‘unusual’ port number. For example, add
50,000 to your house number: 50,123 is less likely to lead to a port conflict. For a list of the known and
registered ports, see http://www.iana.org/assignments/port-numbers
Bandwidth Limit: Specify, disabled / 128 K/ 256 K / 512 K / 768K/ 1M / 3M bps. This is the maximum
bandwidth that the DVR is allowed to use on the network. This is a useful function when connecting the
DVR to busy or heavily loaded networks, or when accessing the DVR(s) over a WAN.
Enable 3GPP Streaming (Unprotected): Check this box to allow unrestricted external connection of
mobile phones, and other rtsp capable devices for viewing via 3GPP/rtsp streaming.
4.7.2 EMAIL
Figure 4-24 Network Menu – Email
SMTP Server: Assign the SMTP (e-mail) server’s name.
NOTE: For more reliable email service, use the server’s IP address.
SMTP Port: Assign the port number used by the SMTP server.