Response to gratuitous arp

How can I get a box (in this case freebsd FreeBSD 8.0) to update its arp table in response to a gratuitous arp? I'm sure there must be a sysctl for it, but for the life of me I can't find it. And yes, I am well aware of the security risks vis-a-vis man in the middle attacks.
 
This question is invalid. FreeBSD 8.0 does by default properly update arp cache in response to Gratuitous arp. Real problem was switch eating packets. I would delete the post myself, but I do not know how
 
Thanks for replying back with the resolution. I was scratching my head on this one (didn't notice the behavior you described - but that was on FBSD FreeBSD 6)..
 
babel17 said:
Real problem was switch eating packets. I would delete the post myself, but I do not know how
Please don't. Someone else might be struggling with the same issue and they can read a solution here too.

Thanks for also sharing the solution, especially since you answered your own question :e
 
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