P663HN-51 ADSL2+ Bonded 802.11N Gateway IEEE 802.11b , IEEE 802.11g , IEEE 802.11n (draft 2.0) , IEEE 802.1D , IEEE 802.3 , IEEE 802.3u , UPnP , Wi-Fi Protected Setup Flexible QoS function for multiple services: The P-663HN-51 comes with complete ATM and Ethernet QoS mechanisms, as well as various IP QoS features (Packet classification/Rate Limitation/Queue Scheduling) Routing Protocol: IGMP , IGMPv2 , IGMPv3 , RIP-1 , RIP-2