Proficient Audio Systems 00P3DG090DSEB3 - Manual (Page 62)

DVR User’s Manual
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Appendix F: Setting up a DVR behind a Router
This appendix describes how to set up a router if the DVR connects to the internet via a
router.
To properly operate a web server, e.g. a DVR, the user has to set up both the IP and port of
the DVR, which are essential for data and command transmission. The port setting is
adjustable in OSD setup menu of the DVR and only one port is needed to do remote
operation. Typically and by the default, the DVR operates on port 80, which is well known
as the http port. Please make sure that port 80 is not blocked by your ISP or you will have
to find another available port and change the setting of the DVR.
In case a router or sometimes a DSL modem is in place, the real IP is now assigned to the
router instead of the DVR. The DVR is located behind the wall (router) and operates on
virtual IP. In most cases, virtual IP starts with 192.168.x.x. The router has two IP: one is
real IP (WAN IP), the other is virtual IP (LAN IP). The virtual IP would be 192.168.x.1.
When the remote user wants to operate the DVR, he will have to send command to the real
IP, i.e. the router. Then the router has to map (forward) the command to the DVR. Thus it is
required to set up the router for port mapping (forwarding) before you can remotely see
image from your DVR.
See your router manufacturer's websites for more instructions on port mapping.