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
Distributed, L2 Mode
In this mode, the W-IAP assigns an IP address from the configured subnet and forwards traffic to both
corporate and non-corporate destinations. Clients receive the corporate IP with VC as the DHCP server. The
default gateway for the client still resides in the datacenter and hence this mode is an L2 extension of
corporate VLAN to remote site. Either the controller or an upstream router can be the gateway for the clients.
Client traffic destined to datacenter resources is forwarded by the master W-IAP (through the IPsec tunnel) to
the client's default gateway in the datacenter.
When a W-IAP registers with the controller, the controller automatically adds the VPN tunnel associated to this
W-IAP into the VLAN multicast table. This allows the clients connecting to the L2 mode VLAN to be part of the
same L2 broadcast domain on the controller.
Distributed, L3 Mode
The Distributed, L3 mode contains all broadcast and multicast traffic to a branch. The Distributed, L3 mode
reduces the cost and eliminates the complexity associated with the classic site-to-site VPN. However, this mode
is very similar to a classic site-to-site IPsec VPN where two VPN endpoints connect individual networks together
over a public network.
In Distributed, L3 mode, each branch location is assigned a dedicated subnet. The master W-IAP in the branch
manages the dedicated subnet and acts as the DHCP server and gateway for clients. Client traffic destined to
datacenter resources is routed to the controller through the IPsec tunnel, which then routes the traffic to the
appropriate corporate destinations.
When a W-IAP registers with the controller, the controller adds a route to enable the routing of traffic from the
corporate network to clients on this subnet in the branch.
Centralized, L2 Mode
The Centralized, L2 mode extends the corporate VLAN or broadcast domain to remote branches. The DHCP
server and the gateway for the clients reside in the datacenter. Either the controller or an upstream router can
be the gateway for the clients. For DHCP services in Centralized, L2 mode, it is recommended that you use an
external DHCP server and not the DHCP server on the controller. Client traffic destined to datacenter
resources is forwarded by the master W-IAP (through the IPsec tunnel) to the client's default gateway in the
datacenter.
Centralized, L3 Mode
For Centralized, L3 clients, the VC acts as a DHCP relay agent that forwards the DHCP traffic to the DHCP server
located behind the controller in the corporate network and reachable through the IPsec tunnel. The
Centralized, L3 VLAN IP is used as the source IP. The IP address is obtained from the DHCP server.
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