嵌入式的双网卡，测试程序，最大网速1M.其中 有测试文档-Embedded dual-card, test procedures, the maximum network speed 1M. Including test documentation

本文介绍在ubuntu下双网卡的配置方法，即一个网卡上外网，另一个与开发板相连-This article describes the configuration of ubuntu under dual-card method, that is, a network card on the external network and another connected with the development board