Sorry, seems I didn't make question clear. Maybe let me ask another question to help with this. So, how is the kernel check those staled arp entries? Or, what is the mechanism that the kernel uses to find the out of date entries?

Thanks,

Yisu


On 11/30/2016 1:41 AM, Anupam Kapoor wrote:
FYI

---------- Forwarded message ---------
From: Anupam Kapoor <anupam.kap...@gmail.com <mailto:anupam.kap...@gmail.com>>
Date: Tue, 29 Nov 2016 at 1:25 PM
Subject: Re: Question about arp caches
To: Shawn Peng <yisup...@gmail.com <mailto:yisup...@gmail.com>>


​On Tue, Nov 29, 2016 at 12:49 PM, Shawn Peng <yisup...@gmail.com <mailto:yisup...@gmail.com>>wrote:

    I find a lot references of the function neigh_release(), can you
    direct me to the one that releases a staled arp entry?


​neigh_destroy(...) is probably what you are looking for.

--
kind regards
anupam​



--
In the beginning was the lambda, and the lambda was with Emacs, and Emacs was the lambda.


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