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  3. Refer to the exhibit． What is the correc

Refer to the exhibit． What is the correc

shuhaiku2020-09-17  25
问题 Refer to the exhibit． What is the correct addressing for a frame and packet received by Host B from Host A?
选项 A、Destination MAC: 0011．43da．2c98 Source MAC: 0070．0e8f．088a Destination IP: 192．168．60．5 Source IP: 192．168．24．5 B、Destination MAC: 0011．43da．2c98 Source MAC: 00b0．d0ef．5f6a Destination IP: 192．168．60．5 Source IP: 192．168．24．5 C、Destination MAC: 0011．43da．2c98 Source MAC: 0070．0e8f．088a Destination IP: 192．168．60．5 Source IP: 192．168．60．1 D、Destination MAC: 0011．43da．2c98 Source MAC: 0070．0e97．af4e Destination IP: 192．168．60．5 Source IP: 192．168．60．2
答案A
解析我们来看一下包发送的过程：Host A发送的：source ip: 192．168．24．5, destination ip: 192．168．60．5 Source mac:00b0．doef．5f6a , destination mac: 0007．0e56．ab2eSwitch1收到后经过查找mac table,不做任何修改发往 Router 1Router 1 发送的：source ip 192．168．24．5 destination ip : 192．168．60．5 Source mac : 0007．0e8f．088a , destination mac:0011．43da．2c98
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