* 自动切换到可用的备份连接、移动、以太网,每种连接都可以用作自动故障转移
* 网络协议: TCP, UDP, DHCP, DHCP RELAY, ICMP, NAT, HTTP, HTTPs, DNS, ARP, NTP, SSH, DDNS, MQTT etc.
* 路由: Static Routing, Policy routing etc.
* 防火墙: NAT, DMZ, Port Forword, IP/MAC Filter, Access Control List
* VPN: PPTP/L2TP/GRE/IPSec
* 远程管理: HTTP, SSH, SNMP V2/V3, FOTA