铁丝 网包覆佛龛后墙，但岩块碎石仍不时隆隆崩落。

Wire netting covered the back wall of the niche, which still occasionally rattles with falling rocks and stones.

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只要有一个客户端和服务器之间的路由器，ARP只会显示路由器的MAC地址，因为这是你的以太网包的目标。

As soon as there is something like a router between client and server, ARP will only reveal the MAC address of the router since this is the target for your Ethernet packets.

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例如，对于以太网来说，网络标准数据包将发送到所有的物理端口，并且通过扫描通过网络传输的所有数据包，您可以检查其中的内容。

For example, with the Ethernet, network standard packets are echoed to all physical ports and, by scanning all the packets that go past on the network, you can examine the content.

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