Configuring RADIUS-assigned IPv4 ACL support on FreeRADIUS

The Standard attribute (92), when used in an ACL without the hp-nas-rules-ipv6 vsa, filters IPv4 traffic inbound from the authenticated client (any IPv6 traffic inbound from the client is dropped.) The following procedure show the configuring of a RADIUS-assigned IPv4 ACL supported by FreeRADIUS using the standard attribute for two different client identification methods (user name/password and MAC address).

  1. Enter the ACL standard attribute in the Free RADIUS dictionary.rfc4849 file.
  2. Enter the switch IP address, NAS (Network Attached Server) type, and the key used in the FreeRADIUS clients.conf file. For example, if the switch IP address is and the key ("secret") is "1234", you would enter the following in the server's clients.conf file:
    Switch identity information for a freeRADIUS application
  3. For a given client user name/password pair or MAC address, create an ACL by entering one or more ACEs in the FreeRADIUS "users" file. Remember that every ACL created automatically includes an implicit deny in ip from any to any ACE.
  4. For example, to create identical ACL support for the following:
    • Client having a user name of "mobilE011" and a password of "run10kFast"

    • Client having a MAC address of 08 E9 9C 4F 00 19

  5. The ACL in this example must achieve the following:
    • Permit http (TCP port 80) traffic from the client to the device at

    • Deny http (TCP port 80) traffic from the client to all other devices

    • Permit all other traffic from the client to all other devices


    For information on syntax details for RADIUS-assigned ACLs, see Using VSA 63 to assign IPv6 and IPv4 ACLs.

  6. To configure the above ACL, enter the user name/password and ACE information as shown here:

Configuring the FreeRADIUS server to support ACLs for the indicated clients