User Guide
Table Of Contents
- Nortel WLAN Security Switch 2300 Series Configuration Guide
- Contents
- How to get Help
- Introducing the Nortel WLAN 2300 System
- Using the Command-Line Interface
- Configuring AAA for Administrative and Local Access
- Configuring and Managing Ports and VLANs
- Configuring and Managing Ports
- Configuring and Managing VLANs
- Managing the Layer 2 Forwarding Database
- Port and VLAN Configuration Scenario
- Configuring and Managing IP Interfaces and Services
- MTU Support
- Configuring and Managing IP Interfaces
- Configuring the System IP Address
- Configuring and Managing IP Routes
- Managing the Management Services
- Configuring and Managing DNS
- Configuring and Managing Aliases
- Configuring and Managing Time Parameters
- Setting the Time Zone
- Configuring the Summertime Period
- Statically Configuring the System Time and Date
- Displaying the Time and Date
- Configuring and Managing NTP
- Adding an NTP Server
- Removing an NTP Server
- Changing the NTP Update Interval
- Resetting the Update Interval to the Default
- Enabling the NTP Client
- Displaying NTP Information
- Managing the ARP Table
- Pinging Another Device
- Logging In to a Remote Device
- Tracing a Route
- IP Interfaces and Services Configuration Scenario
- Configuring SNMP
- Overview
- Configuring SNMP
- Displaying SNMP Information
- Configuring and Managing Mobility Domain Roaming
- Configuring User Encryption
- Configuring AP access points
- AP Overview
- Configuring AP access points
- Specifying the Country of Operation
- Configuring a Template for Automatic AP Configuration
- Configuring AP Port Parameters
- Configuring AP-WSS Security
- Configuring a Service Profile
- Configuring a Radio Profile
- Configuring Radio-Specific Parameters
- Mapping the Radio Profile to Service Profiles
- Assigning a Radio Profile and Enabling Radios
- Disabling or Reenabling Radios
- Displaying AP Information
- Displaying AP Configuration Information
- Displaying a List of Distributed APs
- Displaying a List of Distributed APs that Are Not Configured
- Displaying Connection Information for Distributed APs
- Displaying Service Profile Information
- Displaying Radio Profile Information
- Displaying AP Status Information
- Displaying AP Statistics Counters
- Configuring RF Auto-Tuning
- Wi-Fi Multimedia
- Configuring and Managing Spanning Tree Protocol
- Configuring and Managing IGMP Snooping
- Configuring and Managing Security ACLs
- About Security Access Control Lists
- Creating and Committing a Security ACL
- Mapping Security ACLs
- Modifying a Security ACL
- Using ACLs to Change CoS
- Enabling Prioritization for Legacy Voice over IP
- Security ACL Configuration Scenario
- Managing Keys and Certificates
- Why Use Keys and Certificates?
- About Keys and Certificates
- Creating Keys and Certificates
- Choosing the Appropriate Certificate Installation Method for Your Network
- Creating Public-Private Key Pairs
- Generating Self-Signed Certificates
- Installing a Key Pair and Certificate from a PKCS #12 Object File
- Creating a CSR and Installing a Certificate from a PKCS #7 Object File
- Installing a CA’s Own Certificate
- Displaying Certificate and Key Information
- Key and Certificate Configuration Scenarios
- Configuring AAA for Network Users
- About AAA for Network Users
- AAA Tools for Network Users
- Configuring 802.1X Authentication
- Configuring Authentication and Authorization by MAC Address
- Configuring Web-based AAA
- Configuring Last-Resort Access
- Configuring AAA for Users of Third-Party APs
- Assigning Authorization Attributes
- Overriding or Adding Attributes Locally with a Location Policy
- Configuring Accounting for Wireless Network Users
- Displaying the AAA Configuration
- Avoiding AAA Problems in Configuration Order
- Configuring a Mobility Profile
- Network User Configuration Scenarios
- Configuring Communication with RADIUS
- Managing 802.1X on the WSS Switch
- Managing Sessions
- Managing System Files
- Rogue Detection and Countermeasures
- About Rogues and RF Detection
- Summary of Rogue Detection Features
- Configuring Rogue Detection Lists
- Enabling Countermeasures
- Disabling or Reenabling Active Scan
- Enabling AP Signatures
- Disabling or Reenabling Logging of Rogues
- Enabling Rogue and Countermeasures Notifications
- IDS and DoS Alerts
- Displaying RF Detection Information
- Appendix A: Troubleshooting a WS Switch
- Fixing Common WSS Setup Problems
- Recovering the System Password
- Configuring and Managing the System Log
- Running Traces
- Using Show Commands
- Remotely Monitoring Traffic
- Capturing System Information for Technical Support
- Appendix B: Supported RADIUS Attributes
- Appendix C: Mobility Domain Traffic Ports
- Appendix D: DHCP Server
- Glossary
- Index
- Command Index
Managing Keys and Certificates 381
Nortel WLAN Security Switch 2300 Series Configuration Guide
PEAP-MS-CHAP-V2 Security
PEAP performs a TLS exchange for server authentication and allows a secondary authentication to be performed inside
the resulting secure channel for client authentication. For example, the Microsoft Challenge Handshake Authentication
Protocol version 2 (MS-CHAP-V2) performs mutual MS-CHAP-V2 authentication inside an encrypted TLS channel
established by PEAP.
1 To form the encrypted TLS channel, the WSS must have a digital certificate and must send that certificate
to the wireless client.
2 Inside the WSS switch’s digital certificate is the WSS’s public key, which the wireless client uses to
encrypt a pre-master secret key.
3 The wireless client then sends the key back to the WSS so that both the WSS and the client can derive a
key from this pre-master secret for secure authentication and wireless session encryption.
Clients authenticated by PEAP need a certificate in the WSS only when the switch performs PEAP locally, not when
EAP processing takes place on a RADIUS server. (For details about authentication options, see Chapter , “Configuring
AAA for Network Users,” on page 401.)
About Keys and Certificates
Public-private key pairs and digital signatures and certificates allow keys to be generated dynamically so that data can be
securely encrypted and delivered. You generate the key pairs and certificates on the WSS or install them on the switch
after enrolling with a certificate authority (CA). The WSS can generate key pairs, self-signed certificates, and Certificate
Signing Requests (CSRs), and can install key pairs, server certificates, and certificates generated by a CA.
When the WSS needs to communicate with WLAN Management Software , Web View, or an 802.1X or Web-based
AAA client, WSS Software requests a private key from the switch’s certificate and key store:
• If no private key is available in the WSS’s certificate and key store, the switch does not respond to the request from
WSS Software. If the switch does have a private key in its key store, WSS Software requests a corresponding
certificate.
• If the WSS has a self-signed certificate in its certificate and key store, the switch responds to the request from WSS
Software. If the certificate is not self-signed, the switch looks for a CA’s certificate with which to validate the
server certificate.
• If the WSS has no corresponding CA certificate, the switch does not respond to the request from WSS Software. If
the switch does have a corresponding CA certificate, and the server certificate is validated (date still valid, signature
approved), the switch responds.
If the WSS switch does not respond to the request from WSS Software, authentication fails and access is denied.
For EAP (802.1X) users, the public-private key pairs and digital certificates can be stored on a RADIUS server. In this
case, the WSS switch operates as a pass-through authenticator.
Note. The WSS uses separate server certificates for Admin, EAP (802.1X), and
Web AAA authentication. Where applicable, the manuals refer to these server certificates
as Admin, EAP (or 802.1X), or Web AAA certificates respectively.