What You Need To Know - ZyXEL Communications VMG1312-B Series User Manual

Chapter 8 Home Networking

8.1.2 What You Need To Know

8.1.2.1 About LAN
IP Address
I P addresses ident ify individual devices on a net work. Every net working device ( including
com put ers, servers, rout ers, print ers, et c.) needs an I P address t o com m unicat e across t he
net work. These net working devices are also known as host s.
Subnet Mask
Subnet m asks det erm ine t he m axim um num ber of possible host s on a net work. You can also use
subnet m asks t o divide one net work int o m ult iple sub- net works.
DHCP
A DHCP ( Dynam ic Host Configurat ion Prot ocol) server can assign your Device an I P address, subnet
m ask, DNS and ot her rout ing inform at ion when it 's t urned on.
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 net working device before you can access it .
RADVD (Router Advertisement Daemon)
When an I Pv6 host sends a Rout er Solicit at ion ( RS) request t o discover t he available rout ers,
RADVD wit h Rout er Advert isem ent ( RA) m essages in response t o t he request . I t specifies t he
m inim um and m axim um int ervals of RA broadcast s. RA m essages cont aining t he address prefix.
I Pv6 host s can be generat ed wit h t he I Pv6 prefix an I Pv6 address.
8.1.2.2 About UPnP
Identifying UPnP Devices
UPnP hardware is ident ified as an icon in t he Net work Connect ions folder ( Windows XP) . Each UPnP
com pat ible device inst alled on your net work will appear as a separat e icon. Select ing t he icon of a
UPnP device will allow you t o access t he inform at ion and propert ies of t hat device.
NAT Traversal
UPnP NAT t raversal aut om at es t he process of allowing an applicat ion t o operat e t hrough NAT. UPnP
net work devices can aut om at ically configure net work addressing, announce t heir presence in t he
net work t o ot her UPnP devices and enable exchange of sim ple product and service descript ions.
NAT t raversal allows t he following:
• Dynam ic port m apping
• Learning public I P addresses
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VMG1312-B Series User's Guide