Requirements

DHCP Option 82 operation is configured at the global config level and requires the following:

  • IP routing enabled on the switch

  • DHCP-relay option 82 enabled (global command level)

  • Routing switch access to an Option 82 DHCP server on a different subnet than the clients requesting DHCP Option 82 support

  • One IP helper address configured on each VLAN supporting DHCP clients