Panasonic BL-C111A - Network Camera - Pan Operating Instructions Manual page 69

Port No. of Incoming Access
50001
Now you may be thinking, "do I have to do this programming by myself?"
Understanding UPnP™
If your router does not support a feature called UPnP™ (Universal Plug and Play), you will have to manually
configure your router for port forwarding. Refer to the operating instructions included with your router for more
information.
If your router does support UPnP™, your cameras and router can communicate with each other so that the
router knows which ports are used by which camera. This means you will be able to access your cameras from
the Internet without having to configure your router manually.
Understanding Dynamic DNS services
There is one last problem to solve. How do you find out the global address your ISP has assigned to you? The
answer is to first contact them. If your provider has assigned you a static IP address (i.e., an IP address that
never changes), you can use that static address to access your cameras from the Internet as long as your
router is set up for port forwarding.
But most service providers use dynamic addresses, which means your global address may change monthly,
weekly, or maybe even every day. If your provider uses dynamic addresses, you will need to register with a
Dynamic DNS service in order to access your camera from the Internet.
A Dynamic DNS service allows you to use an easy-to-remember address (such as joe.camera.com) to
access your camera from the Internet. If you have subscribed to a Dynamic DNS service and configured your
camera to use that Dynamic DNS service, your camera will notify the Dynamic DNS service each time your
provider changes your global IP address. This means your Dynamic DNS service always knows your current
global address, so whenever you enter your easy-to-remember address, the Dynamic DNS service
automatically passes the information on to your router, and ultimately, your camera.
Example of how a Dynamic DNS service helps you access your camera over the Internet
A Internet
1.
Your ISP assigns a new global IP address to your Internet access account.
2.
The camera notifies your Dynamic DNS service of its new global IP address.
3.
The Dynamic DNS service notifies the DNS server of your new global IP address. The DNS server updates
its information so that your URL (for example, joe.camera.com) is registered to your new global IP
address.
4.
You try to access your camera from outside (i.e., over the Internet) by entering joe.camera.com.
5.
The computer contacts the DNS server and requests the global IP address registered to
joe.camera.com. The DNS server looks up the global IP address of your URL.
6.
The computer receives your current global IP address from the DNS server and accesses the camera.
2
C C
B B
1
B ISP
Forwarding Destination
192.168.0.252:50001
3
D D
A A
6
C Dynamic DNS Service
5
B B
4
D DNS Server
Operating Instructions 69