IC Realtime 4/8 All Channel 720P Mini 1U HD-AVS DVR - Manual (Page 66)

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 Do not register frequently. The interval between two registrations shall be more than 60 seconds.
Too many registration requests may result in server attack.
 System may take back the domain name that is idle for one year. You can get a notification email
before the cancel operation if your email address setup is OK.
5.3.4.7 UPNP
The UPNP protocol is to establish a mapping relationship between the LAN and the WAN. Please input
the router IP address in the LAN in Figure 5-12. Double click the UPNP item in Figure 5-13, you can see
the following interface. See Figure 5-21.
 UPNP on/off ：Turn on or off the UPNP function of the device.
 Status: When the UPNP is offline, it shows as
“Unknown”. When the UPNP works it shows
“Success”
 Router LAN IP: It is the router IP in the LAN.
 WAN IP: It is the router IP in the WAN.
 Port Mapping list： The port mapping list here is the
one to one relationship with the router’s port
mapping setting.
 Enable Switch : ：It shows that the function of port mapping is enabled in this port.
 List：
 Service name：Defined by user.
 Protocol： Protocol type
 Internal port：Port that has been mapped in the router.
 External port：Port that has been mapped locally.
 Add to the list: Click it to add the mapping relationship.
 Delete: Click it to remove one mapping item.
Double click one item; you can change the corresponding mapping information. See Figure 5-22.
Important:
When you are setting the router external port, please use 1024~5000 port. Do not use well-known
port 1~255 and the system port 256~1023 to avoid conflict.
For the TCP and UDP, please make sure the internal port and external port are the same to
guarantee the proper data transmission.