... WAN Connection : Wired/Wireless modem(Static IP, DHCP, PPTP, PPPoE, L2TP) 3G / 4G : UMTS/HSPACDMA2000TD-SCDMA) Smartphone OS : iPhoneGoogle AndroidWindows Mobile ... server, client, DNS server VPN Pass Through:IP Sec, PPTP, L2TP VPN Server : support Winows XP/Vista/7, MAC, Linux PPTP ...