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Under Linux-4.11 a locally generated ARP request would result in an ARP entry created with state FAILED (as seen by ip neigh show), when there's nobody to respond. Is this normal behaviour?

Also, flushing sudo ip neigh flush dev eth0 doesn't flush the entries, they are still there.

Mark
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  • Stack Overflow is a site for programming and development questions. This question appears to be off-topic because it is not about programming or development. See [What topics can I ask about here](http://stackoverflow.com/help/on-topic) in the Help Center. Perhaps [Super User](http://superuser.com/) or [Unix & Linux Stack Exchange](http://unix.stackexchange.com/) would be a better place to ask. Also see [Where do I post questions about Dev Ops?](http://meta.stackexchange.com/q/134306) – jww Jun 08 '17 at 00:15

1 Answers1

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To flush Entries, you must root user like as "sudo ip neigh flush dev eth0"

Amr Zaky
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  • you can see more feature about arp at this question [link](https://unix.stackexchange.com/questions/192313/clear-the-arp-cache-on-linux-really) – Amr Zaky Jun 07 '17 at 22:43