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User Authentication, None., WPA2., WPA2-MIX., WPA-PSK, WPA2-PSK-MIX

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Chapter 6 Wireless LAN The NWA secure communications via data encryption, wireless client authentication and MAC address filtering. It can also hide its identity in the network. User Authentication Authentication is the process of verifying whether a wireless device is allowed to use the wireless network. You can make every user log in to the wireless network before they can use it. However, every device in the wireless network has to support IEEE 802.1x to do this. For wireless networks, you can store the user names and passwords for each user in a RADIUS server. This is a server used in businesses more than in homes. If you do not have a RADIUS server, you cannot set up user names and passwords for your users. Unauthorized wireless devices can still see the information that is sent in the wireless network, even if they cannot use the wireless network. Furthermore, there are ways for unauthorized wireless users to get a valid user name and password. Then, they can use that user name and password to use the wireless network. The following table shows the relative effectiveness of wireless security methods:. Table 10 Wireless Security Levels SECURITY LEVEL SECURITY TYPE Least Secure Unique SSID (Default) Unique SSID with Hide SSID Enabled MAC Address Filtering WEP Encryption IEEE802.1x EAP with RADIUS Server Authentication Wi-Fi Protected Access (WPA) Most Secure WPA2 The available security modes in your NWA are as follows: • None. No data encryption. • WEP. Wired Equivalent Privacy (WEP) encryption scrambles the data transmitted between the wireless stations and the access points to keep network communications private. • WPA. Wi-Fi Protected Access (WPA) is a subset of the IEEE 802.11i standard. • WPA2. WPA2 (IEEE 802.11i) is a wireless security standard that defines stronger encryption, authentication and key management than WPA. • WPA2-MIX. This commands the NWA to use either WPA2 or WPA depending on which security mode the wireless client uses. • WPA-PSK. This adds a pre-shared key on top of WPA standard. • WPA2-PSK. This adds a pre-shared key on top of WPA2 standard. • WPA2-PSK-MIX. This commands the NWA to use either WPA-PSK or WPA2-PSK depending on which security mode the wireless client uses. Note: To guarantee 802.11n wireless speed, please only use WPA2 or WPA2-PSK security mode. Other security modes may degrate the wireless speed performance to 802.11g. 58 NWA1120 Series User's Guide

Section	Page
NWA1120 Series	1
Contents Overview	3
Table of Contents	5
User’s Guide	9
Introducing the NWA	11
1.1 Introducing the NWA	11
1.1.1 Dual-Band	12
1.2 Wireless Modes	12
1.2.1 MBSSID	12
1.2.2 Wireless Client	13
1.2.3 Root AP	15
1.2.4 Repeater	15
1.3 Ways to Manage the NWA	16
1.4 Configuring Your NWA’s Security Features	17
1.4.1 Control Access to Your Device	17
1.4.2 Wireless Security	17
1.5 Good Habits for Managing the NWA	17
1.6 Hardware Connections	18
1.7 LED	18
Introducing the Web Configurator	19
2.1 Accessing the Web Configurator	19
2.2 Resetting the NWA	20
2.2.1 Methods of Restoring Factory-Defaults	21
2.3 Navigating the Web Configurator	22
2.3.1 Title Bar	22
2.3.2 Navigation Panel	23
2.3.3 Main Window	24
Dashboard	25
3.1 The Dashboard Screen	25
Tutorial	29
4.1 How to Configure the Wireless LAN	29
4.1.1 Choosing the Wireless Mode	29
4.1.2 Further Reading	29
4.2 How to Configure Multiple Wireless Networks	29
4.2.1 Configure the SSID Profiles	31
4.2.2 Configure the Standard Network	33
4.2.3 Configure the VoIP Network	34
4.2.4 Configure the Guest Network	36
4.2.5 Testing the Wireless Networks	38
4.3 NWA Setup in AP and Wireless Client Modes	38
4.3.1 Scenario	38
4.3.2 Configuring the NWA in MBSSID or Root AP Mode	39
4.3.3 Configuring the NWA in Wireless Client Mode	42
4.3.4 MAC Filter Setup	44
4.3.5 Testing the Connection and Troubleshooting	45
Technical Reference	47
Monitor	49
5.1 Overview	49
5.2 What You Can Do	49
5.3 View Logs	49
5.4 Statistics	50
5.5 Association List	51
5.6 Channel Usage	52
Wireless LAN	55
6.1 Overview	55
6.2 What You Can Do in this Chapter	55
6.3 What You Need To Know	56
6.4 Wireless Settings Screen	60
6.4.1 Root AP Mode	61
6.4.2 Repeater Mode	65
6.4.3 Wireless Client Mode	68
6.4.4 MBSSID Mode	71
6.5 SSID Screen	74
6.5.1 Configuring SSID	75
6.6 Wireless Security Screen	76
6.6.1 Security: WEP	78
6.6.2 Security: WPA, WPA2, WPA2-MIX	79
6.6.3 Security: WPA-PSK, WPA2-PSK, WPA2-PSK-MIX	81
6.7 RADIUS Screen	82
6.8 Layer-2 Isolation	84
6.8.1 Layer-2 Isolation Screen	85
6.9 MAC Filter Screen	86
6.10 Technical Reference	88
6.10.1 Additional Wireless Terms	89
6.10.2 WMM QoS	89
6.10.3 Security Mode Guideline	90
LAN	91
7.1 Overview	91
7.2 What You Can Do in this Chapter	91
7.3 What You Need to Know	91
7.4 LAN IP Screen	93
VLAN	95
8.1 Overview	95
8.1.1 What You Can Do in This Chapter	95
8.2 What You Need to Know	95
8.3 VLAN Screen	96
System	97
9.1 Overview	97
9.2 What You Can Do in this Chapter	97
9.3 What You Need To Know	98
9.4 WWW Screen	100
9.5 Certificates Screen	101
9.6 Telnet Screen	102
9.7 SNMP Screen	104
9.8 FTP Screen	106
9.9 Technical Reference	107
9.9.1 MIB	107
9.9.2 Supported MIBs	108
9.9.3 Private-Public Certificates	108
9.9.4 Certification Authorities	108
9.9.5 Checking the Fingerprint of a Certificate on Your Computer	109
Log Settings	111
10.1 Overview	111
10.2 What You Can Do in this Chapter	111
10.3 What You Need To Know	112
10.4 Log Settings Screen	112
Maintenance	115
11.1 Overview	115
11.2 What You Can Do in this Chapter	115
11.3 What You Need To Know	116
11.4 General Screen	116
11.5 Password Screen	117
11.6 Time Screen	118
11.7 Firmware Upgrade Screen	119
11.8 Configuration File Screen	120
11.8.1 Backup Configuration	120
11.8.2 Restore Configuration	120
11.8.3 Back to Factory Defaults	121
11.9 Restart Screen	121
Troubleshooting	123
12.1 Power, Hardware Connections, and LEDs	123
12.2 NWA Access and Login	124
12.3 Internet Access	125
12.4 Wireless LAN	126
Setting Up Your Computer’s IP Address	129
Pop-up Windows, JavaScript and Java Permissions	157
IP Addresses and Subnetting	169
IPv6	177
Wireless LANs	187
Legal Information	201

Match case Limit results 1 per page

Chapter 6 Wireless LAN

NWA1120 Series User’s Guide

The NWA secure communications via data encryption, wireless client authentication and MAC

address filtering. It can also hide its identity in the network.

User Authentication

Authentication is the process of verifying whether a wireless device is allowed to use the wireless

network. You can make every user log in to the wireless network before they can use it. However,

every device in the wireless network has to support IEEE 802.1x to do this.

For wireless networks, you can store the user names and passwords for each user in a RADIUS

server. This is a server used in businesses more than in homes. If you do not have a RADIUS server,

you cannot set up user names and passwords for your users.

Unauthorized wireless devices can still see the information that is sent in the wireless network,

even if they cannot use the wireless network. Furthermore, there are ways for unauthorized

wireless users to get a valid user name and password. Then, they can use that user name and

password to use the wireless network.

The following table shows the relative effectiveness of wireless security methods:.

The available security modes in your NWA are as follows:

•

None.

No data encryption.

•

WEP.

Wired Equivalent Privacy (WEP) encryption scrambles the data transmitted between the

wireless stations and the access points to keep network communications private.

•

WPA.

Wi-Fi Protected Access (WPA) is a subset of the IEEE 802.11i standard.

•

WPA2.

WPA2 (IEEE 802.11i) is a wireless security standard that defines stronger encryption,

authentication and key management than WPA.

•

WPA2-MIX.

This commands the NWA to use either WPA2 or WPA depending on which security

mode the wireless client uses.

•

WPA-PSK

. This adds a pre-shared key on top of WPA standard.

•

WPA2-PSK

. This adds a pre-shared key on top of WPA2 standard.

•

WPA2-PSK-MIX

. This commands the NWA to use either WPA-PSK or WPA2-PSK depending on

which security mode the wireless client uses.

Note: To guarantee 802.11n wireless speed, please only use WPA2 or WPA2-PSK security

mode. Other security modes may degrate the wireless speed performance to

802.11g.

Table 10

Wireless Security Levels

SECURITY

LEVEL

SECURITY TYPE

Least

Secure

Most Secure

Unique SSID (Default)

Unique SSID with Hide SSID Enabled

MAC Address Filtering

WEP Encryption

IEEE802.1x EAP with RADIUS Server Authentication

Wi-Fi Protected Access (WPA)

WPA2