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[FAQ]What Does Incomplete Mean in an ARP Entry?

Latest reply: Apr 24, 2020 21:10:26 2415 3 0 0
If the value of MAC ADDRESS in an ARP entry is Incomplete, this ARP entry is a temporary one. When IP packets trigger ARP Miss messages, the device generates temporary ARP entries and sends ARP Request packets to the destination network segment.
  • When a temporary ARP entry is not aged out:
    • Before receiving an ARP Reply packet, the device discards the IP packets matching the temporary ARP entry, and no ARP Miss message is triggered.
    • After receiving the ARP Reply packet, the device generates a correct ARP entry to replace the temporary entry.
  • After the temporary ARP entry ages out, the device deletes this entry.
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  • convention:

who_knows
Created Dec 29, 2015 02:05:13 Helpful(0) Helpful(0)

Use display arp to check the whole arp table.
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albertsilva
Created Apr 24, 2020 21:10:18 Helpful(0) Helpful(0)

very useful, thanks!!
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albertsilva
Created Apr 24, 2020 21:10:26 Helpful(0) Helpful(0)

Good post
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