... design 2.high speed,routing &NAT function 3.VPN Client/Server,IPSec m2m EDGE Routers for Transportation,bus,Monitoring and Control ... static and dynamic route,PPP Client and PPP server,VPN (including PPTP and L2TP+ IPSEC), DHCP server and client,DDNS (dynamic DNS),firewall, ... specifying local and remote IP16. Can be used as PPP server. Support multi authentication method, such as PAP,CHAP,CHAP-MS ...