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[路由器] 想问下家庭路由器的东西

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我家目前是用光猫完成路由器和调制解调的功能,上面也有 DHCP 服务器。
对于我自己的路由器,我只把它的 LAN 口和光猫的 LAN 口连接起来了,同时关闭了 DHCP 服务器。
我理解现在是把我自己的路由器作为一个无线接入点和交换机用。
现在我也能正常上网(甚至还加了旁路由)我想问一下数据包从我电脑发出时候是怎么到达光猫的呢?首先用 WLAN 的包封装数据包传到路由器,路由器去掉 WLAN 头部,加上 MAC 地址封装成以太网包传到光猫吗?具体我也不懂,但是感觉这不是仅仅一个交换机能完成的工作。

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