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Date: Fri, 21 Mar 2014 19:16:16 +0100
From: Thomas Quinot <thomas@FreeBSD.ORG>
To: Jimmy Olgeni <olgeni@olgeni.com>
Subject: Re: ipsec packets apparently not getting to destination
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* Jimmy Olgeni, 2013-12-03 :

> I cannot imagine any obvious reason for packets getting "lost" after enc0,
> so any hint would be much appreciated :)

Chances are "netstat -s -p udp" will show you an increasing count of
packets with bad checksum. See PRs kern/145737 and kern/146190.

Thomas.