现象:ESP8266成功连接热点后,可以正常访问互联网中的服务器,但是在同一个局域网中的电脑开启的服务器却无法被连接上。 可能原因:对于Windows可能不存在这个问题,测试过程中发现Windows会有弹窗提示是否允许此次的连接, 而Linux可能会有一些防火墙软件没有对目标端口放行,从而导致连接失败。 解决办法:用正在启用的防火墙软件(iptables或者firewall-applet等),新增过滤规则,放行特定端口。
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