If a host is speaking to another host on the same IP network, the target for the ARP request is the other host’s IP address. The “next NIC” in the path will become the target of the ARP request. The purpose for creating such a mapping is so a packet’s L2 header can be properly populated to deliver a packet to the next NIC in the path between two end points. Use the navigation boxes to view the rest of the articles.Īs we’ve learned before, the Address Resolution Protocol (ARP) is the process by which a known 元 address is mapped to an unknown L2 address. This article is a part of a series on Address Resolution Protocol (ARP).
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