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Appendix D: What is Port Forwarding And Other Frequently Asked Networking Questions
How can I Find my External IP Address?
If you wish to find your external IP address, you can use a third-party website such as
www.showmyip.com. Your external IP address can also be found within your Router
settings. Refer to your router’s user guide for further details.
What is the difference between Static and Dynamic IP Addresses?
IP Addresses are the numbers used by the Internet Protocol (IP) to identify your computer
or device. Every computer or device that wants to communicate over the Internet must
have an address, unique to that computer or device.
Internet Service Providers (ISPs) can issue
IP Addresses in two ways:
• St
atic assignment: The ISP issues a permanent, non-changing address that must be manually
entered into the computer or device. This number cannot be used by any other device.
• Dynamic as
signment: The ISP uses a protocol called Dynamic Host Configuration Protocol
(DHCP) that generates an IP Address and leases (i.e. provides) it to your computer or device
for a predetermined length of time. After that time expires, your computer or device must
request a new IP address. This means that your external IP address will change occasionally.
Most residential Internet service packages use dynamic assignment.
Lorex provides a free Dynamic Domain Name Service (DDNS) for use with your system.
DDNS allows you
to set up a web site address that points back to your local network. This
means that even if your external IP address changes, the web site address of your device
will not change. Please visit http://www.lorexddns.net to sign up for your free DDNS
account.
You must create a DDNS account in the same network as your DVR.
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