A virtual network tool (or VPN)

Related tags

Network programming rust tun network nat p2p vpn ip
Overview

switch

A virtual network tool (VPN)

将不同网络下的多个设备虚拟到一个局域网下

示例：

  • 在一台mac设备上运行，获取到ip 10.13.0.2：

    图片

  • 在另一台windows上运行，获取到ip 10.13.0.3：

    图片

  • 此时这两个设备之间就能用ip相互访问了

    图片

  • 输入"list"查看其他已连接的设备(p2p表示NAT打洞成功，relay表示使用服务器中继转发),"status"查看当前设备状态

    图片

  • token的作用是标识一个虚拟局域网，当使用公共服务器时，建议使用一个唯一值当token(比如uuid)，否则有可能连接到其他人创建的虚拟局域网中

  • 公共服务器目前的配置是2核4G 4Mbps，有需要再扩展~

使用须知

  • 需要root/管理员权限
  • 使用命令行运行
  • Mac和Linux下需要加可执行权限(例如:chmod +x ./switch-macos)
  • 暂时固定使用的10.13.0.1/24网段，需要避免和已有的路由冲突

编译

前提条件:安装rust编译环境(https://www.rust-lang.org/zh-CN/tools/install)

到项目根目录下执行 cargo build -p switch-desktop

支持平台

特性

  • IP层数据转发
    • tun虚拟网卡
  • NAT穿透
    • 点对点穿透
    • 服务端中继转发

Todo

  • 支持安卓
  • 数据加密
  • 客户端中继转发
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