Dynamic Dns Setup; Chapter 12 Dynamic Dns Setup; Overview; What You Can Do In This Chapter - ZyXEL Communications VMG1312-B Series User Manual

12.1 Overview

DNS
DNS ( Dom ain Nam e Syst em ) is for m apping a dom ain nam e t o it s corresponding I P address and
vice versa. The DNS server is ext rem ely im port ant because wit hout 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 syst em DNS server( s) , each WAN int erface ( service) is set t o have it s own st at ic
or dynam ic DNS server list . You can configure a DNS st at ic rout e t o forward DNS queries for cert ain
dom ain nam es t hrough a specific WAN int erface t o it s DNS server( s) . The Device uses a syst em
DNS server ( in t he order you specify in t he Br oa dba n d screen) t o resolve dom ain nam es t hat do
not m at ch any DNS rout ing ent ry. Aft er t he Device receives a DNS reply from a DNS server, it
creat es a new ent ry for t he resolved I P address in t he rout ing t able.
Dynamic DNS
Dynam ic DNS allows you t o updat e your current dynam ic I P address wit h one or m any dynam ic
DNS services so t hat anyone can cont act you ( in Net Meet ing, CU- SeeMe, et c.) . You can also access
your FTP server or Web sit e 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) t hat will never change inst ead of using an
I P address t hat changes each t im e you reconnect . Your friends or relat ives will always be able t o
call you even if t hey don't know your I P address.
First of all, you need t o have regist ered a dynam ic DNS account wit h www.dyndns.org. This is for
people wit h a dynam ic I P from t heir I SP or DHCP server t hat would st ill like t o 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 t he D N S En t r y screen t o view, configure, or rem ove DNS rout es
202) .
• Use t he D yn a m ic D N S screen t o enable DDNS and configure t he DDNS set t ings on t he Device
( Sect ion 12.3 on page
VMG1312-B Series User's Guide
C
HAPTER

Dynamic DNS Setup

203) .
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(Sect ion 12.2 on page
201