Summary: VigorFly200 with the addition of QoS, IPv6 support, optional Commtouch Web Filtering subscription and universal repeater mode. QoS and 1 VPN tunnel is planned in a future firmware release. (Update: This firmware is now in beta available on request from Draytek Australia) Click here for 3G/4G modem compatibility list (not all 3G/4G modems are compatible). Click here for a test drive . Latest firmware supports BigPond Ultimate (Sierra 312U) and 4G (Sierra 320U) modems.