I have a DCS-930L network camera that I configured from its Web-based interface. In SETUP | Network Setup, I have disabled both UPnP and UPnP Port Forwarding. In my router's (Netgear WNDR3700) settings, I reserved the local IP address, 192.168.1.80, for the DCS-930L. In the DCS-930L I assigned the network camera HTTP Port 8000; therefore, I can access the DCS-930L on the LAN from http://192.168.1.80:8000. In addition, in the router, I have forwarded port 8000 to the local IP address, 192.168.1.80, so I can access the DCS-930L from outside the LAN.
I can access the DCS-930L both from within the LAN and outside of the LAN.
However, even though UPnP and UPnP Port Forwarding in the DCS-930L are disabled, the DCS-930L keeps adding and deleting UPnP NAT rules in the router. In addition, a system at the IP address, 207.232.83.172, keeps attempting to access the DCS-930L from different ports. I traced the IP address, 207.232.83.172, to the ISP, Telekenex, in Los Angeles, California. A partial log from the router is below.
Why does the DCS-930L keep using UPnP even though I disabled it in its Web-based interface? In addition, why does a system at the IP address 207.232.83.172 keep trying to access the network camera at different ports?
I could probably rectify this issue by disabling UPnP on the router. However, I want to use UPnP for other purposes so I rather not disable it for all devices on the network.
[UPnP set event: add_nat_rule] from source 192.168.1.80 Thursday, June 23,2011 11:56:14
[UPnP set event: del_nat_rule] from source 192.168.1.80 Thursday, June 23,2011 11:56:14
[UPnP set event: add_nat_rule] from source 192.168.1.80 Thursday, June 23,2011 11:56:02
[UPnP set event: del_nat_rule] from source 192.168.1.80 Thursday, June 23,2011 11:56:02
[LAN access from remote] from 207.232.83.172:57520 to 192.168.1.80:3128, Thursday, June 23,2011 11:55:58
[LAN access from remote] from 207.232.83.172:56570 to 192.168.1.80:3128, Thursday, June 23,2011 11:55:55
[LAN access from remote] from 207.232.83.172:56104 to 192.168.1.80:3128, Thursday, June 23,2011 11:55:50
[UPnP set event: add_nat_rule] from source 192.168.1.80 Thursday, June 23,2011 11:55:40
[UPnP set event: del_nat_rule] from source 192.168.1.80 Thursday, June 23,2011 11:55:40
[UPnP set event: add_nat_rule] from source 192.168.1.80 Thursday, June 23,2011 11:55:28
[UPnP set event: del_nat_rule] from source 192.168.1.80 Thursday, June 23,2011 11:55:28
[UPnP set event: add_nat_rule] from source 192.168.1.80 Thursday, June 23,2011 11:55:16
[UPnP set event: del_nat_rule] from source 192.168.1.80 Thursday, June 23,2011 11:55:16
[LAN access from remote] from 207.232.83.172:59864 to 192.168.1.80:80, Thursday, June 23,2011 11:55:15
[LAN access from remote] from 207.232.83.172:57761 to 192.168.1.80:80, Thursday, June 23,2011 11:55:07
[LAN access from remote] from 207.232.83.172:56356 to 192.168.1.80:80, Thursday, June 23,2011 11:55:02
[UPnP set event: add_nat_rule] from source 192.168.1.80 Thursday, June 23,2011 11:54:54
[UPnP set event: del_nat_rule] from source 192.168.1.80 Thursday, June 23,2011 11:54:48
[UPnP set event: add_nat_rule] from source 192.168.1.80 Thursday, June 23,2011 11:54:36
[UPnP set event: del_nat_rule] from source 192.168.1.80 Thursday, June 23,2011 11:54:36
[UPnP set event: add_nat_rule] from source 192.168.1.80 Thursday, June 23,2011 11:54:24
[UPnP set event: del_nat_rule] from source 192.168.1.80 Thursday, June 23,2011 11:54:24
[LAN access from remote] from 207.232.83.172:52228 to 192.168.1.80:20107, Thursday, June 23,2011 11:54:23
[LAN access from remote] from 207.232.83.172:51140 to 192.168.1.80:20107, Thursday, June 23,2011 11:54:19
[LAN access from remote] from 207.232.83.172:49492 to 192.168.1.80:20107, Thursday, June 23,2011 11:54:14
[LAN access from remote] from 207.232.83.172:48110 to 192.168.1.80:20107, Thursday, June 23,2011 11:54:09
[UPnP set event: add_nat_rule] from source 192.168.1.80 Thursday, June 23,2011 11:53:59