... support: IGMP, IGMP PROXYConditional Access based on Port or MAC/IP address• Refined service awareness and QoS ... • Robust security mechanismL2 subscriber isolation, MAC+IP+PVC binding supportRestriction on the number of MAC addresses, subscribers, ... IPoA/IPoE• Multi-service processingSupport authentication by port binding, DHCP, PPPoE, or 802.1x, and address re-assignmentAddress management: ...