PPPOE
The Point-to-Point Protocol over Ethernet (PPPoE) is a network
protocol for encapsulating PPP frames inside Ethernet frames.
Integrated PPP protocol implements authentication, encryption,
and compression functions that traditional Ethernet cannot
provide and can also be used in the cable modem and digital
subscriber line (DSL) and Ethernet that provide access service
to the users. Essentially, it is a protocol that allows to establish
a point-to-point tunnel between two Ethernet interfaces within
an Ethernet broadcast domain.
DNS
The Domain Name System (DNS) is a hierarchical distributed
naming system for computers, services, or any resource
connected to the Internet or a private network. It associates
various information with domain names assigned to each of the
participating entities. A Domain Name Service resolves queries
for these names into IP addresses for the purpose of locating
computer services and devices worldwide. An often-used
analogy to explain the Domain Name System is that it serves as
the phone book for the Internet by translating human-friendly
computer hostnames into IP addresses.
WDS
A wireless distribution system (WDS) is a system enabling the
wireless interconnection of access points in an IEEE 802.11
network. It allows a wireless network to be expanded using
multiple access points without the traditional requirement for a
wired backbone to link them. All base stations in a wireless
distribution system must be configured to use the same radio
channel, method of encryption (none, WEP, or WPA) and the
same encryption keys. They may be configured to different
service set identifiers. WDS also requires every base station to
be configured to forward to others in the system. WDS may also
be considered a repeater mode because it appears to bridge and
accept wireless clients at the same time (unlike traditional
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