Technical data
Multi Media
Re:source
11
Linux
Mediatomb
:
http://mediatomb.cc/
GmediaServer
http://www.gnu.org/software/gmediaserver/
WLAN (W-LAN, Wireless LAN)
Radio network. Network connection is done
using radio waves in the 2.4 GHz frequency
range. Radio networks are easy to install as
no cables have to be laid but are often
problematic and unreliable, particularly over
longer transmission distances. In many
cases, Power Line networks that also don't
require any cabling are a better choice.
In each case, the installation of a network
cable is the most fault-tolerant and problem
free transmission technology. An additional
point is that cabled networks don't produce
any electro smog.
WPA(2)
Wi-Fi Protected Access (WPA)
WPA contains the architecture of WEP, but
offers additional protection through dynamic
keys that are based on the following (
Cipher
)
standards:
- Temporal Key Integrity Protocol
(TKIP)
-
Advanced Encryption Standard
(AES)
WPA offers Pre- Shared Keys (PSK) for
authentication or Extensible Authentication
Protocol (EAP) through IEEE 802.1x.
The MMM is based on the authentication
PSK and supports both the WPA(2)
encryption TKIP and AES.
WEP
Wired Equivalent Privacy (WEP) is the
previously used standard encryption
algorithm for WLANs. It should control
access to the network as well as ensuring the
confidentiality and integrity of the data.
Because of various weak spots, the process
is considered to be unsafe. For this reason,
WLAN installations should use the more
secure WPA encryption. See WPA.
With WPE authentication, a distinction is
drawn between two processes:
Open
Open System Authentication
is the standard
authentication. The WEP key is used at the
same time for authentication: Each client with
the correct WEP key gets access to the
network.
Shared
Shared Key Authentication
is reputed to be
the more secure version. In this case,
authentication is done through the Challenge-
Response authentication, with a secret key.
However, the Challenge-Response process is
also based on WEP and demonstrates the
same weaknesses.
The MMM offers both
Open
and
Shared
WEP
authentication.
Wi-Fi
Certificate for WLAN products that work
according to IEEE802.11 standards and are
compatible with other products.