... support, High Availability, Intrusion Prevention System (IPS), URL filtering, Stateful Failover, Class-Based Weighted Fair Queuing (CBWFQ), Weighted Fair Queuing (WFQ ... ), Link Fragmentation and Interleaving (LFI), Dynamic Multipoint VPN (DMVPN), WAN failover, DHCP server, Virtual Route Forwarding-Lite (VRF-Lite), DNS proxy ...