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Page 81 / 252 Scroll up to view Page 76 - 80
Chapter 11 Wireless LAN
NBG5715 User’s Guide
81
11.3
Wireless Security Modes
11.3.1
No Security
Select
No Security
to allow wireless clients to communicate with the access points without any
data encryption.
Note: If you do not enable any wireless security on your NBG5715, your network is
accessible to any wireless networking device that is within range.
Figure 44
Network > Wireless LAN 2.4G/5G > Security: No Security
The following table describes the labels in this screen.
11.3.2
WEP Encryption
WEP encryption scrambles the data transmitted between the wireless stations and the access points
to keep network communications private. It encrypts unicast and multicast communications in a
network. Both the wireless stations and the access points must use the same WEP key.
Your NBG5715 allows you to configure up to four 64-bit or 128-bit WEP keys but only one key can
be enabled at any one time.
Select
Static WEP
from the
Security Mode
list.
Table 29
Network > Wireless LAN > Security: No Security
LABEL
DESCRIPTION
Security Mode
Choose
No Security
from the drop-down list box.
Apply
Click
Apply
to save your changes back to the NBG5715.
Cancel
Click
Cancel
to reload the previous configuration for this screen.
Page 82 / 252
Chapter 11 Wireless LAN
NBG5715 User’s Guide
82
Figure 45
Network > Wireless LAN 2.4G/5G > Security: Static WEP
The following table describes the wireless LAN security labels in this screen.
Table 30
Network > Wireless LAN 2.4G/5G > Security: Static WEP
LABEL
DESCRIPTION
Security Mode
Select
Static WEP
to enable data encryption.
PassPhrase
Enter a Passphrase (up to 26 printable characters) and click
Generate
.
A passphrase functions like a password. In WEP security mode, it is further
converted by the NBG5715 into a complicated string that is referred to as the
“key”. This key is requested from all devices wishing to connect to a wireless
network.
WEP Encryption
Select
64-bits
or
128-bits
.
This dictates the length of the security key that the network is going to use.
Authentication
Method
Select
Auto
or
Shared Key
from the drop-down list box.
This field specifies whether the wireless clients have to provide the WEP key to
login to the wireless client. Keep this setting at
Auto
unless you want to force a
key verification before communication between the wireless client and the
NBG5715 occurs.
Select
Shared Key
to force the clients to provide the WEP key prior to
communication.
ASCII
Select this option in order to enter ASCII characters as WEP key.
Hex
Select this option in order to enter hexadecimal characters as a WEP key.
The preceding "0x", that identifies a hexadecimal key, is entered automatically.
Page 83 / 252
Chapter 11 Wireless LAN
NBG5715 User’s Guide
83
11.3.3
WPA-PSK/WPA2-PSK
Select
WPA-PSK
or
WPA2-PSK
from the
Security Mode
list.
Figure 46
Network > Wireless LAN > Security: WPA-PSK/WPA2-PSK
The following table describes the labels in this screen.
11.3.4
WPA/WPA2
Select
WPA
or
WPA2
from the
Security Mode
list.
Key 1 to Key 4
The WEP keys are used to encrypt data. Both the NBG5715 and the wireless
stations must use the same WEP key for data transmission.
If you chose
64-bit WEP
, then enter any 5 ASCII characters or 10 hexadecimal
characters ("0-9", "A-F").
If you chose
128-bit WEP
, then enter 13 ASCII characters or 26 hexadecimal
characters ("0-9", "A-F").
You must configure at least one key, only one key can be activated at any one
time. The default key is key 1.
Apply
Click
Apply
to save your changes back to the NBG5715.
Cancel
Click
Cancel
to reload the previous configuration for this screen.
Table 30
Network > Wireless LAN 2.4G/5G > Security: Static WEP (continued)
LABEL
DESCRIPTION
Table 31
Network > Wireless LAN > Security: WPA-PSK/WPA2-PSK
LABEL
DESCRIPTION
Security Mode
Select
WPA-PSK
or
WPA2-PSK
to enable data encryption.
WPA Compatible
This field appears when you choose
WPA2-PSK
as the
Security Mode
.
Check this field to allow wireless devices using
WPA-PSK
security mode to
connect to your NBG5715.
Pre-Shared Key
WPA-PSK/WPA2-PSK
uses a simple common password for authentication.
Type a pre-shared key from 8 to 63 case-sensitive keyboard characters.
Group Key
Update Timer
The
Group Key Update Timer
is the rate at which the AP sends a new group
key out to all clients.
The default is
3600
seconds (60 minutes).
Apply
Click
Apply
to save your changes back to the NBG5715.
Cancel
Click
Cancel
to reload the previous configuration for this screen.
Page 84 / 252
Chapter 11 Wireless LAN
NBG5715 User’s Guide
84
Figure 47
Network > Wireless LAN 2.4G/5G > General: WPA/WPA2
The following table describes the labels in this screen.
Table 32
Network > Wireless LAN > General: WPA/WPA2
LABEL
DESCRIPTION
Security Mode
Select
WPA
or
WPA2
to enable data encryption.
WPA Compatible
This check box is available only when you select
WPA2-PSK
or
WPA2
in the
Security Mode
field.
Select the check box to have both WPA2 and WPA wireless clients be able to
communicate with the NBG5715 even when the NBG5715 is using WPA2-PSK
or WPA2.
Group Key Update
Timer
The
Group Key Update Timer
is the rate at which the AP (if using
WPA-
PSK/WPA2-PSK
key management) or RADIUS
server (if using
WPA/WPA2
key management) sends a new group key out to all clients. The re-keying
process is the WPA/WPA2 equivalent of automatically changing the WEP 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/WPA2-PSK
mode.
PMK Cache Period
This field is available only when you select
WPA2
.
Specify how often wireless clients have to resend usernames and passwords in
order to stay connected. Enter a time interval between 10 and 999999
minutes.
Note: If wireless client authentication is done using a RADIUS server, the
reauthentication timer on the RADIUS server has priority.
Pre-Authentication
This field is available only when you select
WPA2
.
Pre-authentication enables fast roaming by allowing the wireless client (already
connecting to an AP) to perform IEEE 802.1x authentication with another AP
before connecting to it. Select
Enable
to turn on preauthentication in WAP2.
Otherwise, select
Disable
.
Authentication Server
IP Address
Enter the IP address of the external authentication server in dotted decimal
notation.
Port Number
Enter the port number of the external authentication server.
You need not change this value unless your network administrator instructs you
to do so with additional information.
Page 85 / 252
Chapter 11 Wireless LAN
NBG5715 User’s Guide
85
11.4
The MAC Filter Screen
The MAC filter screen allows you to configure the NBG5715 to give exclusive access to devices
(
Allow
) or exclude devices from accessing the NBG5715 (
Deny
). Every Ethernet device has a
unique MAC (Media Access Control) address. The MAC address is assigned at the factory and
consists of six pairs of hexadecimal characters, for example, 00:A0:C5:00:00:02. You need to know
the MAC address of the devices to configure this screen.
To change your NBG5715’s MAC filter settings, click
Network
>
Wireless LAN 2.4G/5G
>
MAC
Filter
. The screen appears as shown.
Figure 48
Network > Wireless LAN 2.4G/5G > MAC Filter
Shared Secret
Enter a password (up to 127 alphanumeric characters) as the key to be shared
between the external authentication server and the NBG5715.
The key must be the same on the external authentication server and your
NBG5715. The key is not sent over the network.
Session Timeout
The NBG5715 automatically disconnects a wireless client from the wireless and
wired networks after a period of inactivity. The wireless client needs to send the
username and password again before it can use the wireless and wired
networks again. Some wireless clients may prompt users for a username and
password; other clients may use saved login credentials. In either case, there
is usually a short delay while the wireless client logs in to the wireless network
again.
Enter the time in seconds from 0 to 999999.
Apply
Click
Apply
to save your changes back to the NBG5715.
Reset
Click
Reset
to reload the previous configuration for this screen.
Table 32
Network > Wireless LAN > General: WPA/WPA2 (continued)
LABEL
DESCRIPTION

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