VMG1312-B Series User’s Guide 201
CHAPTER 12
Dynamic DNS Setup
12.1 Overview
DNS
DNS ( Dom ain Nam e System ) is for m apping a dom ain nam e to its corresponding I P address and
vice versa. The DNS server is extrem ely im port ant because without it, you m ust know t he I P
address of a m achine before you can access it .
I n addit ion t o t he system DNS server( s) , each WAN int erface ( service) is set to have it s own static
or dynam ic DNS server list. You can configure a DNS static rout e t o forward DNS queries for certain
dom ain nam es through a specific WAN int erface t o its DNS server( s). The Device uses a syst em
DNS server (in t he order you specify in t he Broadband screen) to resolve dom ain nam es that do
not m atch any DNS routing ent ry. Aft er t he Device receives a DNS reply from a DNS server, it
creat es a new ent ry for the resolved I P address in the routing table.
Dynamic DNS
Dynam ic DNS allows you to updat e your cur r ent dynam ic I P address w ith one or m any dynam ic
DNS services so t hat anyone can contact you (in Net Meet ing, CU- SeeMe, et c.) . You can also access
your FTP server or Web site on your own com put er using a dom ain nam e ( for inst ance
m yhost .dhs.org, where m yhost is a nam e of your choice) that will never change instead of using an
I P address that changes each tim e you reconnect. Your friends or relat ives will always be able to
call you even if t hey don't know your I P address.
First of all, you need t o have registered a dynam ic DNS account wit h www.dyndns.org. This is for
people wit h a dynam ic I P fr om t heir I SP or DHCP server t hat would st ill like to have a dom ain nam e.
The Dynam ic DNS service provider will give you a password or key.
12.1.1 What You Can Do in this Chapter
• Use the DN S Entr y screen to view, configure, or rem ove DNS routes (
Section 12.2 on page
202
) .
• Use the Dyna m ic DN S screen to enable DDNS and configure the DDNS sett ings on the Device
( Sect ion 12.3 on page 203) .
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