Speco Technologies 2 Channel HDcctv + 8 Channel Full D1 Digital Video Recorder DVR82HD - Manual (Page 76)

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8-7-6. Network
Port: When connecting multiple DVRs to the network, set a unique port number to each DVR.
Web Port: Set a web server port number.
Network Type
STATIC: The address setting mode is manual. Input IP, Gateway, Subnet Mask, and DNS server IP.
DHCP: The address setting mode is automatic. Addresses and other information do not need to be set.
DDNS: Set whether to use DDNS service or not.
Network Stream: Set the Resolution, Frame Rate, and the Quality.