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分享我的技巧 : How Does HP-UX Populate the ARP Cache?

aa_29
本科生

分享我的技巧 : How Does HP-UX Populate the ARP Cache?

If a local host cannot find a destination host's MAC address in the ARP cache, the local host

does the following:

• The local host sends out a broadcast packet to all nodes on the network asking if their IP

address matches the IP address in question.

• One and only one node should respond to the ARP broadcast by sending a reply packet

indicating that it has the requested IP address. The reply packet sent by the remote node

will contain the remote node's MAC address.

• Upon receiving the reply packet, the local node records the remote node's IP/MAC

address information in the local ARP cache.