Extreme Networks Summit WM Series Guide de l'utilisateur Page 140
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WM Access Domain Services configuration
Summit WM Series WLAN Switch and Altitude Access Point Software Version 4.1 User Guide
140
● A Message Integrity Check or Code (MIC), an additional 8-byte code that is inserted before the
standard WEP 4-byte Integrity Check Value (ICV). These integrity codes are used to calculate and
compare, between sender and receiver, the value of all bits in a message, which ensures that the
message has not been tampered with.
The encryption portion of WPA v2 is Advanced Encryption Standard (AES). AES includes:
● A 128 bit key length, for the WPA2/802.11i implementation of AES
● Four stages that make up one round. Each round is iterated 10 times.
● A per-packet key mixing function that shares a starting key between devices, and then changes their
encryption key for every packet or after the specified re-key time interval expires.
● The Counter-Mode/CBC-MAC Protocol (CCMP), a new mode of operation for a block cipher that
enables a single key to be used for both encryption and authentication. The two underlying modes
employed in CCM include:
● Counter mode (CTR) that achieves data encryption
● Cipher Block Chaining Message Authentication Code (CBC-MAC) to provide data integrity
The following is an overview of the WPA authentication and encryption process:
● Step one – The wireless device client associates with Altitude AP.
● Step two – Altitude AP blocks the client's network access while the authentication process is carried
out (the Summit WM series switch sends the authentication request to the RADIUS authentication
server).
● Step three – The wireless client provides credentials that are forwarded by the Summit WM series
switch to the authentication server.
● Step four – If the wireless device client is not authenticated, the wireless client stays blocked from
network access.
● Step five – If the wireless device client is authenticated, the Summit WM series switch distributes
encryption keys to the Altitude AP and the wireless client.
● Step six – The wireless device client gains network access via the Altitude AP, sending and receiving
encrypted data. The traffic is controlled with permissions and policy applied by the Summit WM
series switch.
To set up Wi-Fi Protected Access privacy (WPA) for an AAA WM-AD:
1 From the main menu, click WM Access Domain Configuration. The WM Access Domain
Configuration screen is displayed.
2 In the left pane WM Access Domains list, click the AAA WM-AD you want to configure privacy by
WPA-PSK for a Captive Portal. The To po lo gy tab is displayed.
3 Click the Privacy tab.
- Contents 3
- Formatting conventions 10
- Documentation feedback 10
- Safety Information 11
- Installing Power Supply Units 12
- Power Input Requirements 12
- Maintenance Safety 13
- General Safety Precautions 13
- Power Supply Cords Selection 13
- WARNING! 15
- Sicherheitshinweise 16
- Installation von Netzteilen 17
- Wartungssicherheit 17
- Auswahl der Stromkabel 18
- About this Guide 20
- Conventional wireless LANs 21
- Network traffic flow 25
- Network security 26
- Authentication 27
- WM Access Domain Services 28
- Mobility and roaming 29
- Network availability 29
- System Configuration Overview 30
- System configuration overview 34
- Configuring for remote access 35
- Setting up the data ports 42
- ● Host Port 43
- ● Third-Party AP Port 43
- ● Router Port 43
- Setting up static routes 45
- Setting up OSPF Routing 47
- 3 Configuring the Altitude AP 55
- Altitude AP radios 56
- Altitude AP discovery 57
- Registration after discovery 58
- Security mode 60
- Discovery timers 61
- ● Number of retries 62
- ● Delay between retries 62
- ● PoE enabled switch port 63
- ● PoE Injector 63
- ● Power by AC adaptor 63
- America 74
- Copy to Defaults feature 79
- Controlled Upgrade settings 84
- WM-AD overview 85
- Setting up a WM-AD checklist 86
- Topology of a WM-AD 87
- RF assignment for a WM-AD 88
- Filtering for a WM-AD 90
- Final filter rule 91
- Filtering sequence 91
- WM-AD global settings 92
- Setting up a new WM-AD 96
- Topology for a WM-AD 98
- Enabling management traffic 100
- To create an AAA topology: 105
- Authentication for a WM-AD 108
- ● Select IP/Port 125
- ● DNS (IP of DNS server) 126
- Default filter examples 132
- Privacy for a WM-AD for AAA 138
- Table 12: Service classes 143
- QoS modes 144
- Table 15: Queues 145
- Bridging traffic locally 149
- ● Tagged 150
- ● Untagged 150
- Availability overview 153
- Availability prerequisites 154
- Viewing SLP activity 156
- To view SLP activity: 157
- Mobility manager 159
- Defining management users 163
- Configuring network time 165
- To apply time zone settings: 166
- To set Network Time Protocol: 167
- Enabling SNMP 169
- To enable SNMP Parameters: 170
- Using controller utilities 171
- Trace Route 172
- Working with third-party APs 178
- Summit spy overview 179
- Running Summit Spy scans 181
- Analysis engine overview 183
- Working with friendly APs 186
- To delete a friendly AP: 187
- To modify a friendly AP: 187
- To maintain the Altitude APs: 189
- Viewing the displays 191
- To view reports and displays: 192
- Viewing reports 198
- To view reports: 199
- Disassociating a client 203
- Blacklisting a client 204
- To change the log levels: 208
- To set a poll interval: 209
- ● Halt system: reboot 210
- To upload a new backup: 215
- To delete a backup: 216
- To schedule a backup: 216
- To download for restore: 218
- To upload an image file: 219
- Logs including alarms 221
- To view logs: 222
- To view traces: 223
- To view audits: 224
- To clear logs: 225
- Performing system maintenance 226
- Glossary 227
- D (Continued) 229
- I (Continued) 233
- M (Continued) 235
- N (Continued) 236
- O (Continued) 237
- P (Continued) 238
- R (Continued) 239
- S (Continued) 240
- W (Continued) 244
- A System states and LEDs 247
- Altitude AP system states 248
- System states and LEDs 250
- B Regulatory Information 251
- EMI/EMC Standards 252
- Telecom Standards 252
- Physical and Environmental 253
- Part 15 Unlicensed Antenna 255
- European Community 257
- European Union 1999/5/EC 258
- European Spectrum Usage Rules 260
- Declarations of Conformity 262
- Regulatory Information 264
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