Stateful Packet Inspection and Anti Denial-of-Service attack
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)
TR-069 remote management: P-663HN-51 provides Broadband Forum-compliant TR-069 remote management functionality speeding up deployment tasks when paired with the default Auto-Configuration Server (ACS) for auto-configuration and dynamic service provisioning