MAC Address Filters

This page contains instructions for creating and managing MAC address filters for DHCP.

Introduction

A MAC Address Filter is a Grid Manager object which keeps track of a set of MAC addresses.

MAC Address Filters are typically used to restrict access to IPv4 DHCP Ranges. Once you have configured your MAC Address Filter the way you want it using the instructions below, see Restricting Access to a Range to apply it to a DHCP Range.

Creating a new MAC Address Filter

If you need a new MAC Address Filter, please email hostmgr to request one. Provide the following details:

  • a desired name for the new MAC Address Filter object.

    There is a single global namespace for all Filters, so try to choose something reasonable that incorporates the department or group for which this filter is relevant. If in doubt, explain what you plan to use it for, and we will help you choose a suitable name.

  • the name(s) of one or more network models (from Contacts Database) that should confer “ownership” rights to this MAC Address Filter. Any user with permissions on any of the named network models will automatically be given permission to manage this MAC Address Filter as well (updated nightly).

    These network model names will be stored in Grid Manager as values of an Extensible Attribute called “Owned By Network”. Modifying or removing this attribute may result in loss of permissions on the MAC Address Filter.

Managing MAC addresses in a MAC Address Filter

To open a MAC Address Filter:

  1. Navigate to Data Management > DHCP > Filters using the rows of tabs at the top of the screen.
  2. Open the desired MAC Address Filter by clicking on its name in the table.

This will display a table containing all MAC addresses currently present in the MAC Address Filter.

If your table contains many rows, see Using the Table Controls in Getting Started with IPAM.

Adding a MAC address

After opening a MAC Address Filter as described above,

  1. Click the Add (+) icon above the table.
  2. Enter the desired MAC address.
  3. Optionally, you may set an expiration time at which this MAC address will be automatically removed from the MAC Address Filter.
  4. Click “Next” at the bottom of the dialog window.

  5. Optionally, you may enter a username in the “Register as User” field to associate with this MAC address (for your own tracking purposes).  If you don’t want to do this, just leave it blank.

  6. Click “Save & Close”.

Removing a MAC address

After opening a MAC Address Filter as described above,

  1. Select the checkbox for the MAC address you wish to remove (making sure no other checkboxes are selected).
  2. Click the Delete (trash can) icon above the table.
  3. If you’re sure, click “Yes” when the confirmation dialog appears.