1.确定服务器地址:

//确定服务器器地址,这里为本机地址
        InetAddress inetAddress = null;
        try {
            inetAddress = InetAddress.getLocalHost();
        }catch (UnknownHostException e){
            ...
        }

2.开启服务器

//新建Server对象,并设置好监听的端口
        RadiusServer server = new RadiusServer();
        server.setListenAddress(inetAddress);
        server.setAcctPort(8071);
        server.setAuthPort(8072);
//开启服务
        server.start(true, true);

2.启动客户端

//新建client对象
        RadiusClient client = new RadiusClient(inetAddress.getHostAddress(), "00000000");
//设置发送到目的服务器的端口号
        client.setAcctPort(8071);
        client.setAuthPort(8072);
//申请认证
        client.authenticate(userName, Password);