LevelOne VOI-8001 User Manual

Page 80

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Cable/DSL

This field indicates the Internet connection status. Its value is

Connected , Disconnected or Connecting.

WAN IP

Connected to the Internet through Cable or ADSL modem, the ISP will

offer the home gateway a WAN IP address to communicate with other

hosts in the Internet.

Subnet Mask

This field indicates a

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mask

used to determine what

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subnet

the WAN

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IP

address

belongs to. An

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IP address

has two components, the network

address and the

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host

address. For example, consider the IP address

192.168.168.182 with subnet mask is 255.255.255.0, the first three

numbers (192.168.168) represent the Class C network address, and the

forth number (182) identifies a particular

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host on this network.

Gateway

“Gateway” is a

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node

on a

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network

that serves as an entrance to another

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network

. For the home gateway, The “Gateway” is the next device,

which routes the traffic to the Internet.

DNS

Domain Name System (or Service or Server) is an Internet service that

translates domain names into IP addresses. Because the domain names

are alphabetic, they are easier to remember. However, the Internet is

based on

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IP addresses

. Every time you use a domain name, a

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DNS

service must translate the name into the corresponding IP address. For

example, the domain name www.example.com might translate to

198.105.232.4. The DNS system has its own

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network

. If one

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DNS

server

doesn't know how to translate a particular domain name, it will ask

its upper stream server, and so on, until the correct IP address is returned

or timed-out.

Secondary DNS

This is the secondary DNS to use when the primary DNS does not work.

Domain Name

Domain name is a name, which identifies one or more IP addresses. This

field represents the domain name obtained from your ISP.

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