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TechNote: ar_entry_query: Could not find the ace for source address xxx.xxx.xxx.xxx

The following error is an unusual one which can be hard to diagnose. When I originally had this error, there was no information on SunSolve, and precious little on the web in general.

ar_entry_query: Could not find the ace for source address xxx.xxx.xxx.xxx

The meaning of this error is that the ethernet device could not find its own MAC address in the arp table. Somehow the entry with the SP (static, publish) bits was removed. This should not occur under normal circumstances.

To resolve, simply unplumb and then replumb the interface, OR add a static arp entry with the pub flag at the end of the command, for example:

arp -s hostname macaddress pub


 

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