How To
Summary
ARP (address resolution protocol) is a fundamental networking protocol that works with Layer 2 data to enable Layer 3 communication. On Linux appliances, the arp command, and the resulting arp table, are essential Layer 2 networking tools that can indicate a network problem, and therefore, ARP literacy is important. This article explains not only how to read an ARP table, but how to identify ARP issues, which can be indicative of a larger network problem.
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Worldwide
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Document Information
Modified date:
24 April 2023
UID
125182722