User Manual

WBSn-2450 User Guide Page - 23 -
Security, Authentication, Encryption Modes and Maximum Associations
Security Mode
Authentication Mode Encryption Mode Max Associations
None Open system None 256 (127 in v1.0)
WEP
(Only available for
the first defined
VAP)
• Shared key • WEP/40
• WEP/104
• 127
• 127
WPA
• PSK (Pre-shared key)
• Radius
• TKIP + AES • 110
WPA2
• PSK (Pre-shared key)
• Radius
• AES • 110
WPA\2
• PSK
• Radius
• AES + TKIP • 110
WBSn supports the capability of limiting the number of maximum associations per VAP. The limit can be
set to any value between 0 and 50, regardless of the security of the VAP.
3.3.2 QoS (Quality of Service) Packet Priority
Wireless Multimedia Extensions (WME), also known as Wi-Fi MultiMedia (WMM), provide basic QoS
features to IEEE 802.11n networks. WMM prioritizes traffic on the wireless interface using four Access
Categories (AC):
• Voice
• Video
• Best Effort
• Background
Traffic is prioritized by these access categories, and the implementation defined by the WMM standard.
Traffic is therefore suitable for applications that require QoS over Wi-Fi, (for example, Voice over IP
(VoIP)).
Note: In order to allow QoS through the WBSn-2450, both ends of the network (CPE on the wireless side
and the switch/router on the Ethernet side) should support the same priority tagging. This permits the
marking of a specific packet with a specific priority. WBSn supports DSCP, 802.1p and Auto priority
tagging.
When DSCP is selected, WBSn inspects the incoming IP packets and determines the WMM priority
according to the DSCP priority bits. When W8021p is selected, WBSn inspects the incoming layer-2
packets and determines the WMM priority according to the VLAN-priority bits. When Auto mode is
selected, WBSn checks whether a VLAN tag exists, and if it does, it determines the priority according to
the VLAN priority. Otherwise, the priority is determined by the DSCP value.
Downlink (data sent from the network to the user), a packet from the wire-line network is received by
the WBSn, and its priority detected. The packet will be prioritized over the air according to WMM AC
prioritization. When the packet reaches the CPE, the CPE passes it to its LAN interface according to the
packet definition.
Uplink (data sent from the user to the network), the CPE will detect the priority (as defined at the CPE)
and will pass the frame with the correct WMM AC characteristics, thus providing the priority classification
on the wireless side.
To view the status of a VAP:
To view the status of any or all defined VAPs, navigate to Status => Wireless => VAP.