Ruckus Wireless ZoneDirector 3000, User Manual, Page: 240 / 430

Working with Access Point Groups
Modifying Model Specific Controls
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Ruckus Wireless, Inc.
DHCP Option 82
The “DHCP Relay Agent Information Option” (Option 82) allows a DHCP Relay Agent
to insert specific identification information into a request that is being forwarded to
a DHCP server.
When this option is enabled for an Ethernet port or a WLAN SSID, additional
information will be encapsulated in DHCP option 82 and inserted into DHCP request
packets. This option supports the ability for a service provider to allocate IP
addresses intelligently by considering information on the origin of the IP allocation
request.
DHCP Option 82 Sub-Options
Option 82 sub-options can be used to further customize the format and content of
information provided in DHCP requests. As of release 9.8, ZoneDirector supports
the following Option 82 sub-options:
• Sub-option 1: Agent Circuit ID
• Sub-option 2: Agent Remote ID
• Sub-option 150: DHCPv4 Virtual Subnet Selection
• Sub-option 151: DHCPv4 Virtual Subnet Selection Control
Sub-option 1 (Circuit ID) can be customized to send only the AP’s MAC address in
hexadecimal format or the MAC address and ESSID. The default format is: IF-
Name:VLAN-ID:ESSID:AP-Model:AP-Name:AP-MAC.
Sub-option 2 (Remote ID) sends the client’s MAC address by default. It can be
configured to send the AP’s MAC address, or the client MAC plus ESSID or AP MAC
plus ESSID.
Sub-option 150 can be enabled to encapsulate the VLAN ID.
Sub-option 151 can be enabled to encapsulate either the ESSID or a configurable
Area Name.