After remove enthernet cable, what are the steps for linux to update the ARP table ?
in desktop linux,
if i pull out ethernet cable from any eth port, this ARP entry gets removed right away. my question is, what are the steps to make this happen under the hood ? (all i know is device driver will report "eth0 is down".) who detects it and removes the ARP entry ASAP ? thanks ! |
My guess would be some issue tied to disconnect report.
How are you checking cache and I assume you mean locally? |
I suspect what the OP is asking for is whether the kernel does the flushing of the ARP cache itself, or if some userland program does it as a result of discovering this interface status change.
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