Concept Guide
Table Of Contents
- About this Guide
- About Instant
- Setting up a W-IAP
- Automatic Retrieval of Configuration
- Instant User Interface
- Initial Configuration Tasks
- Customizing W-IAP Settings
- Modifying the W-IAP Host Name
- Configuring Zone Settings on a W-IAP
- Specifying a Method for Obtaining IP Address
- Configuring External Antenna
- Configuring Radio Profiles for a W-IAP
- Configuring Uplink VLAN for a W-IAP
- Changing the W-IAP Installation Mode
- Changing USB Port Status
- Master Election and Virtual Controller
- Adding a W-IAP to the Network
- Removing a W-IAP from the Network
- VLAN Configuration
- IPv6 Support
- Wireless Network Profiles
- Configuring Wireless Network Profiles
- Configuring Fast Roaming for Wireless Clients
- Configuring Modulation Rates on a WLAN SSID
- Multi-User-MIMO
- Management Frame Protection
- Disabling Short Preamble for Wireless Client
- Editing Status of a WLAN SSID Profile
- Editing a WLAN SSID Profile
- Deleting a WLAN SSID Profile
- Wired Profiles
- Captive Portal for Guest Access
- Understanding Captive Portal
- Configuring a WLAN SSID for Guest Access
- Configuring Wired Profile for Guest Access
- Configuring Internal Captive Portal for Guest Network
- Configuring External Captive Portal for a Guest Network
- Configuring Facebook Login
- Configuring Guest Logon Role and Access Rules for Guest Users
- Configuring Captive Portal Roles for an SSID
- Configuring Walled Garden Access
- Authentication and User Management
- Managing W-IAP Users
- Supported Authentication Methods
- Supported EAP Authentication Frameworks
- Configuring Authentication Servers
- Understanding Encryption Types
- Configuring Authentication Survivability
- Configuring 802.1X Authentication for a Network Profile
- Enabling 802.1X Supplicant Support
- Configuring MAC Authentication for a Network Profile
- Configuring MAC Authentication with 802.1X Authentication
- Configuring MAC Authentication with Captive Portal Authentication
- Configuring WISPr Authentication
- Blacklisting Clients
- Uploading Certificates
- Roles and Policies
- DHCP Configuration
- Configuring Time-Based Services
- Dynamic DNS Registration
- VPN Configuration
- IAP-VPN Deployment
- Adaptive Radio Management
- Deep Packet Inspection and Application Visibility
- Voice and Video
- Services
- Configuring AirGroup
- Configuring a W-IAP for RTLS Support
- Configuring a W-IAP for Analytics and Location Engine Support
- Managing BLE Beacons
- Clarity Live
- Configuring OpenDNS Credentials
- Integrating a W-IAP with Palo Alto Networks Firewall
- Integrating a W-IAP with an XML API Interface
- CALEA Integration and Lawful Intercept Compliance
- Cluster Security
- W-IAP Management and Monitoring
- Uplink Configuration
- Intrusion Detection
- Mesh W-IAP Configuration
- Mobility and Client Management
- Spectrum Monitor
- W-IAP Maintenance
- Monitoring Devices and Logs
- Hotspot Profiles
- ClearPass Guest Setup
- IAP-VPN Deployment Scenarios
- Acronyms and Abbreviations
Dell Networking W-Series Instant 6.5.1.0-4.3.1.0 | User Guide Cluster Security | 304
Chapter 24
Cluster Security
This chapter describes cluster security and the procedure for configuring cluster security DTLS for secure
communication. It includes the following topics:
l Overview on page 304
l Enabling Cluster Security on page 305
l Cluster Security Debugging Logs on page 305
l on page 306
Overview
Cluster security is a communication protocol that secures control plane messages between Instant access
points. Control plane messages such as configuration, cluster join, and other messages distributed between the
devices in a cluster are secured using this protocol. Cluster security operates on the UDPport 4434 and uses
DTLSprotocol to secure messages.
Cluster Security Using DTLS
Cluster security provides secure communication using Datagram Transport Layer Security (DTLS). A DTLS
connection is established between the W-IAPs communicating with each other in the cluster. Following are
some of the advantages of using DTLS for cluster security:
l Mutual authentication is done between the W-IAPs in a cluster using device certificate.
l Peer MAC address validation against AP whitelist can be enabled in the configuration.
l Control plane messages between cluster members are transmitted securely using the DTLS connection
established.
If auto-join is enabled, backward compatibility and recovery of W-IAPs is allowed on ARUBA UDP port 8211.
Messages required for image synchronization and cluster security DTLS state synchronization are the only
messages allowed.
If auto-join is disabled, the MAC address of a peer W-IAP is verified against the AP whitelist during device
certificate validation.
Locked Mode Slave W-IAP
A slave W-IAP with non-factory default configuration is considered to be in locked mode of operation. These
slave W-IAPs will not be able to join the existing non-DTLScluster as backward compatibility and recovery is not
allowed.
To recover the slave W-IAPs in locked mode:
l Execute the disable-cluster-security-dtls action command on the slave W-IAP , or
l Factory reset the slave W-IAP.