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WPA2 with RADIUS Application Example

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Figure 46 WPA-PSK Authentication ZyXEL G-170S User's Guide WPA(2) with RADIUS Application Example You need the IP address of the RADIUS server, its port number (default is 1812), and the RADIUS shared secret. A WPA(2) application example with an external RADIUS server looks as follows. "A" is the RADIUS server. "DS" is the distribution system. 1 The AP passes the wireless client's authentication request to the RADIUS server. 2 The RADIUS server then checks the user's identification against its database and grants or denies network access accordingly. 3 The RADIUS server distributes a Pairwise Master Key (PMK) key to the AP that then sets up a key hierarchy and management system, using the pair-wise key to dynamically generate unique data encryption keys to encrypt every data packet that is wirelessly communicated between the AP and the wireless clients. Figure 47 WPA(2) with RADIUS Application Example Appendix C Types of EAP Authentication 75

Section	Page
User’s Guide	1
Copyright	3
Federal Communications Commission (FCC) Interference Statement	4
ZyXEL Limited Warranty	6
Customer Support	7
Table of Contents	9
List of Figures	13
List of Tables	15
Preface	17
Getting Started	19
1.1.1 Application Overview	19
1.1.1.1 Infrastructure	19
1.1.1.2 Ad-Hoc	20
1.2 G-170S Hardware and Utility Installation	21
1.4 Windows XP Users Only	21
1.6 ZyXEL Utility Screen Summary	22
1.7.1 Site Survey	23
Wireless LAN Network	27
2.1.1 SSID	27
2.1.2 Channel	27
2.1.3 Transmission Rate (Tx Rate)	27
2.1.4 Super G	28
2.2.1 Data Encryption with WEP	28
2.2.2 IEEE 802.1x	28
2.2.2.1 EAP Authentication	29
2.2.3 WPA(2)	29
2.2.3.1 Encryption	29
2.2.3.2 User Authentication	30
2.2.4 WPA(2)-PSK Application Example	30
2.2.5 WPA(2) with RADIUS Application Example	31
2.3 Authentication Type	31
2.4 Preamble Type	32
ZyXEL Utility Configuration	33
3.1.1 Trend Chart	34
3.2.1 Connecting to a WLAN Network	36
3.2.2 Security Settings	36
3.2.2.1 WEP Encryption	37
3.2.2.2 WPA/WPA2	38
3.2.2.3 WPA-PSK/WPA2-PSK	39
3.2.2.4 IEEE 802.1x	40
3.2.3 Confirm Save Screen	41
3.3.1 Adding a New Profile	43
Maintenance	51
Troubleshooting	55
5.1 Problems Starting the ZyXEL Utility	55
5.2 Problem with the Link Quality	55
5.3 Problems Communicating With Other Computers	56
Product Specifications	57
Management with Wireless Zero Configuration	59
Activating Wireless Zero Configuration	59
Connecting to a Wireless Network	60
Security Settings	63
Association	64
Authentication	65
Ordering the Preferred Networks	68
Types of EAP Authentication	71
EAP-MD5 (Message-Digest Algorithm 5)	71
EAP-TLS (Transport Layer Security)	71
EAP-TTLS (Tunneled Transport Layer Service)	71
PEAP (Protected EAP)	72
LEAP	72
Dynamic WEP Key Exchange	72
WPA(2)	73
Encryption	73
User Authentication	74
WPA(2)-PSK Application Example	74
WPA(2) with RADIUS Application Example	75
Security Parameters Summary	76
Index	77
Numerics	77
A	77
C	77
D	77
E	77
F	77
G	77
H	77
I	77
L	78
M	78
N	78
O	78
P	78
Q	78
R	78
S	78
T	78
U	79
V	79
W	79

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ZyXEL G-170S User’s Guide

Appendix C Types of EAP Authentication

Figure 46

WPA-PSK Authentication

WPA(2) with RADIUS Application Example

You need the IP address of the RADIUS server, its port number (default is 1812), and the

RADIUS shared secret. A WPA(2) application example with an external RADIUS server

looks as follows. "A" is the RADIUS server. "DS" is the distribution system.

The AP passes the wireless client's authentication request to the RADIUS server.

The RADIUS server then checks the user's identification against its database and grants

or denies network access accordingly.

The RADIUS server distributes a Pairwise Master Key (PMK) key to the AP that then

sets up a key hierarchy and management system, using the pair-wise key to dynamically

generate unique data encryption keys to encrypt every data packet that is wirelessly

communicated between the AP and the wireless clients.

Figure 47

WPA(2) with RADIUS Application Example