公司机器安装双网卡，需要来回切换内网和外网，写了两个小工具，利用系统内部指令，切换使用双网卡,Companies to install dual-card machines need to switch back and forth within the network and outside the network, wrote the two small tools, the use of system commands, switch using a dual network card

双网卡切换工具，ddk编程的人可以学习学习,Dual card switch tools, ddk programming can learn

VxWorks下双网卡冗余备份及智能切换技术.-Dual-network switch

TCP协议，双网卡冗余，一网卡坏掉后，自动切换IP-TCP protocol, dual LAN redundancy, one network adapter broken, the automatic switching IP