这台打印机发现它的IP地址就是请求里的IP地址，于是它发送一个ARP响应：“嘿，我的IP地址是192.”168.0.45。

The printer recognizes its own IP in the request and sends an ARP Reply: "Hey, my IP address is 192."168.0.45.

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她的计算机(IP地址是192.168.0.16)希望发送这个打印任务到办公室的惠普LaserJet打印机(IP地址是192.168.0.45)。

Her computer (IP address 192.168.0.16) wants to send the print job to the office's HP LaserJet printer (IP address 192.168.0.45).

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现在Jessica的计算机知道了这台打印机的MAC地址。

Now Jessica's computer knows the printer's MAC address.

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