DHCP Snooping

The access point can add the Circuit ID and/or Remote ID to relayed DHCP packets. The DHCP server can make decisions based on this information, such as assigning specific IP addresses.

LANconfig: Interfaces > DHCP Snooping









Port
Here you can configure the WLAN network name or a LAN port (depending on the device model ETHx or LANx) on which DHCP requests should be supplemented.
Circuit-ID
The Circuit ID can be configured here using these placeholders:
  • %i: Inserts the name of the interface where the relay agent received the DHCP request.
  • %n: Inserts the name of the DHCP relay agent as specified under Setup > Name.
  • %s: Inserts the WLAN SSID if the DHCP packet originates from a WLAN client. For other clients, this variable contains an empty string.
  • %r: Inserts the system-wide MAC address.
  • %%: Inserts a percent sign.
Remote-ID
Here you can configure the Remote ID using these placeholders:
  • %i: Inserts the name of the interface through which the relay agent received the DHCP request.
  • %n: Inserts the name of the DHCP relay agent as specified under Setup > Name.
  • %s: Inserts the WLAN SSID if the DHCP packet originates from a WLAN client. For other clients, this variable contains an empty string.
  • %r: Inserts the system-wide MAC address.
  • %%: Inserts a percent sign.

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