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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
mask
used to determine what
subnet
the WAN
IP address
belongs to.
An
IP address
has two components, the network address and the
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 host on this network.
Gateway
“Gateway” is a
node
on a
network
that serves as an entrance to another
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
IP addresses
. Every time you use a
domain name, a
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
network
. If one
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.
Connection Type
There are five ways to get the WAN IP address. They are DHCP, STATIC, PPPoE, PPTP
and L2TP. This field indicates the way to get the WAN IP address. Through Figure 3-2 to
3-6 detail all specific items of each mode.