Lans, Wans And The Device; Dhcp Setup; Dns Server Addresses - ZyXEL Communications VMG1312-B Series User Manual

Chapter 8 Home Networking
8.10.1

LANs, WANs and the Device

The act ual physical connect ion det erm ines whet her t he Device port s are LAN or WAN port s. There
are t wo separat e I P net works, one inside t he LAN net work and t he ot her out side t he WAN net work
as shown next .
Figure 58 LAN and WAN I P Addresses
LAN

8.10.2 DHCP Setup

DHCP ( Dynam ic Host Configurat ion Prot ocol, RFC 2131 and RFC 2132) allows individual client s t o
obt ain TCP/ I P configurat ion at st art- up from a server. You can configure t he Device as a DHCP
server or disable it . When configured as a server, t he Device provides t he TCP/ I P configurat ion for
t he client s. I f you t urn DHCP service off, you m ust have anot her DHCP server on your LAN, or else
t he com put er m ust be m anually configured.
IP Pool Setup
The Device is pre- configured wit h a pool of I P addresses for t he DHCP client s ( DHCP Pool) . See t he
product specificat ions in t he appendices. Do not assign st at ic I P addresses from t he DHCP pool t o
your LAN com put ers.

8.10.3 DNS Server Addresses

DNS ( Dom ain Nam e Syst em ) m aps 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
com put er before you can access it . The DNS server addresses you ent er when you set up DHCP are
passed t o t he client m achines along wit h t he assigned I P address and subnet m ask.
There are t wo ways t hat an I SP dissem inat es t he DNS server addresses.
• The I SP t ells you t he DNS server addresses, usually in t he form of an inform at ion sheet , when
you sign up. I f your I SP gives you DNS server addresses, ent er t hem in t he D N S Se r ve r fields in
t he D H CP Se t up screen.
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WAN
VMG1312-B Series User's Guide