Concept Pro VXM4-RT16 User Manual - page 44
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APPENDIX B: CONFIGURING A NETGEAR
APPENDIX B: CONFIGURING A NETGEAR
DG834 ROUTER FOR USE WITH THE VXM4
DG834 ROUTER FOR USE WITH THE VXM4
USING DDNS TO CONNECT
DDNS (Dynamic Domain Name Server) is generally used when your ISP provides you with a dynamic public IP address. The problem with a dynamic
IP address, because it can change regularly, is that any remote users that need to connect to the VXM4 do not know what IP address to enter in the
remote client!
Using DDNS solves this problem. When a VXM4 is correctly configured to use DDNS, it regularly interrogates the router and sends the current public
IP address to a 3rd party database. The VXM4 also sends its MAC address, which is unique.
Before using DDNS, the VXM4 must be set up correctly by following the steps on page 39 and verifying that a local connection can be made.
In addition, the following must be configured in the VXM4 NETWORK setup menu (page 21)
DHCP - disabled
DDNS - enabled
1st DNS server - must be the IP address of the ISP's 1st DNS server
2nd DNS server - must be the IP address of the ISP's 2nd DNS server
DDNS server - leave set as DDNS.DVRLINK.NET
Note: if the ISP's DNS servers are not known, they can be identified as follows:
A) Open a command prompt with the following sequence: START - RUN - type in 'CMD' - OK
B) At the command prompt, type 'IPCONFIG /ALL' and press ENTER. The ISP's DNS servers are listed at the bottom of the information screen. If
only one server is listed, enter this in the VXM4 1st DNS server, and leave the 2nd DNS server as default
Finally, make a note of the VXM4's unique MAC address - this can be found in the SYSTEM: INFORMATION part of the VXM4 setup (page 22).
For example, if the MAC address is 00-11-5F-00-9A-33, the following should be entered instead of an IP address when configuring a VXM4
connection group:
00115f009a33.dvrlink.net
Note: the entry should be MAC address.dvrlink.net, not MAC address.ddns.dvrlink.net
When the remote client initiates a connection, it interrogates dvrlink.net for the actual public IP address that corresponds to the MAC address. It then
uses the resulting IP address to connect to the VXM4