DISCUS™ Multiplay Wireless VoIP AG
(C) (2006) Pirelli Broadband Solutions S.p.A. All Rights Reserved. Proprietary Use Pursuant to Cover Page Instructions.
58
OGU 930500105-A1
Network Connections Section
and WEP for encryption. This method's configuration is virtually identical to the
802.1x WEP method described above, excluding the automatic key generation
and the group key update interval specification. Please refer to the 802.1x WEP
section above when configuring this method. Remember that the static key must
be defined in the wireless Windows client as well.
Virtual AP
You can set up multiple wireless LANs on
DISCUS™ Multiplay Wireless VoIP
AG
, limited only to the number supported by your wireless card. Each wireless
LAN is defined as an access point.
The 'Virtual APs' section displays the Router's physical wireless access point,
on top of which virtual connections may be created. To create a virtual connec-
tion, click the 'New Virtual AP' link.
The new connection will also be added to the network connections list, and will
be configurable like any other connection. You can change the connection's
default name by clicking its Edit action icon and changing the SSID value in the
'Configure LAN Wireless 802.11g Access Point - Virtual AP' screen.
Wireless QoS (WMM)
Wi-Fi Multimedia (WMM) is a Wi-Fi Alliance certification, based on the IEEE
802.11e draft standard. It provides basic Quality of Service (QoS) features to
IEEE 802.11 networks. If your wireless card supports WMM, enable this feature
by checking its 'Enabled' check-box.
Upon enabling WMM, the highest priority is given to Voice packets, decreasing
towards Background packets which receive the lowest priority.
In addition, you can control the reliability of traffic flow. By default, the 'Ack Pol-
icy' for each access category is set to "Normal", meaning that an acknowledge
packet is returned for every packet received. This provides a more reliable trans-
mission but increases traffic load, which decreases performance. You may
choose to cancel the acknowledgement by selecting "No Ack" in the combo-box
of each access category, thus changing the Ack policy. This can be useful for
Voice, for example, where speed of transmission is important and packet loss is
tolerable to a certain degree.
RADIUS Server
For authentication to work, the client's transmission must go through the Router,
and reach the back-end server that performs the actual authentication. The
wireless client contacts the access point, which in turn communicates with the
Remote Authentication Dial-in User Service (RADIUS) server. The RADIUS
server verifies the client's credentials to determine whether the device is autho-
rized to connect to the LAN. If the RADIUS server accepts the client, the server