... recording> All channel simultaneous realtime playback, GRID interface & smart search> Support Multi-brand network cameras such as: Dahua, Arecont Vision, AXIS, Canon ... /1000M)Network FunctionHTTP, TCP/IP, UPNP, RTSP, UDP, SMTP, NTP, DHCP, DNS, IP Filter, PPPOE, DDNS, FTP, Alarm Server, IP Search(Support Dahua IP camera, DVR ...