Chapter 10 Wireless Security Screen

The following table describes the labels not previously discussed

Table 43 Security: WPA2 or WPA2-MIX

LABEL

DESCRIPTIONS

Profile Name

Type a name to identify this security profile.

 

 

Security Mode

Choose WPA2 or WPA2-MIXin this field.

 

 

ReAuthentication

Specify how often wireless stations have to resend usernames and

Timer

passwords in order to stay connected.

 

The default value is 0, which means the reauthentication off.

 

Note: If wireless station authentication is done using a RADIUS

 

server, the reauthentication timer on the RADIUS server

 

has priority.

 

 

Idle Timeout

The NWA automatically disconnects a wireless station from the wired

 

network after a period of inactivity. The wireless station needs to

 

enter the username and password again before access to the wired

 

network is allowed.

 

The default time interval is 3600 seconds (or 1 hour).

 

 

Group Key

The Group Key Update Timer is the rate at which the AP sends a

Update Timer

new group key out to all clients. The re-keying process is the WPA

 

equivalent of automatically changing the group key for an AP and all

 

stations in a WLAN on a periodic basis. Setting of the Group Key

 

Update Timer is also supported in WPA-PSK mode. The NWA‘s

 

default is 1800 seconds (30 minutes).

 

 

PMK Cache

When a wireless client moves from one AP’s coverage area to

 

another, it performs an authentication procedure (exchanging

 

security information) with the new AP. Instead of re-authenticating a

 

client each time it returns to the AP’s coverage area, which can cause

 

delays to time-sensitive applications, the AP and the client can store

 

(or “cache”) and use information about their previous authentication.

 

Select Enable to allow PMK caching, or Disable to switch this

 

feature off.

 

 

Pre-

Pre-authentication allows a wireless client to perform authentication

Authentication

with a different AP from the one to which it is currently connected,

 

before moving into the new AP’s coverage area. This speeds up

 

roaming. Select Enable to allow pre-authentication, or Disable to

 

switch it off.

 

 

Apply

Click Apply to save your changes.

 

 

Reset

Click Reset to begin configuring this screen afresh.

 

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NWA-3500/NWA-3550 User’s Guide