EverFocus EDVR SERIES - Manual (Page 147)

JavaVM.
If you have a Dynamic IP address from your Internet Service Provider.
Dynamic IP addresses can cause conflicts when trying to connect to DVR(s)
on a high speed internet connection. With new router technology (DDNS), it
allows you to overcome this problem. DDNS lets you assign a fixed host and
domain name to a dynamic Internet IP address. It is useful when you are
hosting your own DVR, website, FTP server, or other server behind the Router.
Before using this feature, you need to sign up for DDNS service at
www.dyndns.org or www.tzo.com . (Preferred routers: Linksys BEFSR41 V3 or
DLINK DI624 or any router that offers DDNS.
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