User`s guide

NETWORK IP CAMERA User’s Guide
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CD : (Carrier Detect)
H. High Speed Solutions
This page is to help you to access to high-speed Internet services: such as xDSL or a cable
modem connection. However, a most high-speed Internet Services provide you with some
external IP address, there are several practical issues that should be considered when developing
your application.
AVAILABLE IP ADDRESS
ISP (Internet Service Provider) will provide you with several external static IP addresses ideally –in
which case you can assign any one of these to your Network IP Camera to make it fully accessible
over the Internet. However, if your service provider supplies you with only one IP number – which is
often the case – this IP number is normally assigned to your PC-leaving no connection available for
your Network IP Camera.
What can you do if your ISP is unable to provide you with an IP number?
There are a number of other options what you may like to consider: including:
NAT BOX
Short for Network Address Translation, NAT (Network Address Translation) is Internet standard that
allows a local-area network (LAN) to use one set of IP addresses for internal traffic and a second set of
addresses for external traffic. A NAT box located where your LAN meets the Internet will handle all of
the necessary IP address translations and provides:
z Internal IP addresses that are unique to your network – with no possibility of conflict with IP
Addresses used by other companies and organizations.
z The possibility of combining multiple ISDN connections into a single Internet connection.
z An effective firewall for hiding internal IP addresses
NAT Feature in Windows 2000
Utilize the NAT feature in Windows 2000 to allow multiple Ethernet cards in your PC, and you can
then use one of port for the Internet and the other for your internal network. With this solution, you
can let your Network IP Camera upload image streams to an external Web Server that is maintained