Wireless N300 Home Router
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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 bridging).WDS may be incompatible
between different products (even occasionally from the same vendor)
since it is not certified by the Wi-Fi Alliance. WDS may provide two
modes of wireless AP-to-AP connectivity:
Wireless bridging, in which WDS APs communicate only with each other
and don't allow wireless clients or stations (STA) to access them.
Wireless repeating, in which APs communicate with each other and with
wireless STAs.
DMZ
In computer security, a DMZ (sometimes referred to as a perimeter
networking) is a physical or logical subnetwork that contains and
exposes an organization's external-facing services to a larger untrusted
network, usually the Internet. The purpose of a DMZ is to add an
additional layer of security to an organization's local area network (LAN);
an external attacker only has access to equipment in the DMZ, rather
than any other part of the network. Hosts in the DMZ have limited
connectivity to specific hosts in the internal network, although
communication with other hosts in the DMZ and to the external network
is allowed. This allows hosts in the DMZ to provide services to both the
internal and external network, while an intervening firewall controls the
traffic between the DMZ servers and the internal network clients. Any
services such as Web servers, Mail servers, FTP servers and VoIP servers,
etc. that are being provided to users on the external network can be
placed in the DMZ.
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