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
214 | DHCP Configuration Dell Networking W-Series Instant 6.5.1.0-4.3.1.0 | User Guide
The following table describes the behavior of the DHCP Relay Agent and Option 82 in the W-IAP.
DHCP Relay
Option
82
Result
Enabled Enabled DHCP packet relayed with the ALU-specific Option 82 string
Enabled Disabled DHCP packet relayed without the ALU-specific Option 82 string
Disabled Enabled DHCP packet not relayed, but broadcast with the ALU-specific Option 82 string
Disabled Disabled DHCP packet not relayed, but broadcast without the ALU-specific Option 82
string
Table 46: DHCP Relay and Option 82
In the CLI
To configure a Centralized, L2 DHCP profile:
(Instant AP)(config)# ip dhcp <profile-name>
(Instant AP)(DHCP Profile <profile-name>)# server-type <centralized>
(Instant AP)(DHCP Profile <profile-name>)# server-vlan <vlan-ID>
(Instant AP)(DHCP Profile <profile-name>)# option82 alu
(Instant AP)(DHCP Profile <profile-name>)# disable-split-tunnel
(Instant AP)(DHCP Profile <profile-name>)# end
(Instant AP)# commit apply
To configure a Centralized, L3 DHCP profile:
(Instant AP)(config)# ip dhcp <profile-name>
(Instant AP)(DHCP Profile <profile-name>)# server-type <centralized>
(Instant AP)(DHCP Profile <profile-name>)# server-vlan <vlan-ID>
(Instant AP)(DHCP Profile <profile-name>)# dhcp-relay
(Instant AP)(DHCP Profile <profile-name>)# dhcp-server <DHCP-relay-server>
(Instant AP)(DHCP Profile <profile-name>)# vlan-ip <DHCP IP address> mask <VLAN mask>
(Instant AP)(DHCP Profile <profile-name>)# end
(Instant AP)# commit apply
Configuring the Default DHCP Scope for Client IP Assignment
The DHCP server is a built-in server, used for networks in which clients are assigned IP address by the VC. You
can customize the DHCP pool subnet and address range to provide simultaneous access to more number of
clients. The largest address pool supported is 2048. The default size of the IP address pool is 512.
When a DHCP server is configured and if the Client IP assignment parameter for an SSID profile is set to
Virtual Controller Assigned, the VC assigns the IP addresses to the WLANor the wired clients. By default,
the W-IAP automatically determines a suitable DHCP pool for Virtual Controller Assigned networks.
W-IAPs typically select the 172.31.98.0/23 subnet. If the IP address of the W-IAP is within the
172.31.98.0/23 subnet, the W-IAP selects the 10.254.98.0/23 subnet. However, this mechanism does not
guarantee that it would avoid all possible conflicts with the wired network. If your wired network uses either
172.31.98.0/23 or 10.254.98.0/23, and you experience problems with the Virtual Controller Assigned
networks after upgrading to Dell Networking W-Series Instant 6.2.1.0-3.4.0.0 or later, manually configure
the DHCP pool by following the steps described in this section.
You can configure a domain name, DNS server, and DHCP server for client IP assignment using the Instant UI
or the CLI.