ipv6 related warnings

[Hajimu UMEMOTO]

Hi,

>>>>> On Wed, 30 Sep 2009 09:22:30 +0200
>>>>> "Paul B. Mahol" <onemda at gmail.com> said:

onemda> It fixed warnings.

Thank you for confirming it.
I've just committed it.

onemda> I noticed that tcp_keepalive and tcp_extensions
onemda> options do not work from rc.conf.
onemda> They only put sysctl values to zero.
onemda> log_in_vain and drop_synfin works correctly (even if they are configured via
onemda> sysctl.conf and not via rc.conf)

Since net.inet.tcp.always_keepalive and net.inet.tcp.rfc1323 should be
one by default, it should be enough that setting them to zero when
tcp_keepalive and tcp_extensions is NO.  However, it seems that there
is a bug in testing tcp_extensions.  I heard from hrs@ that he is
working on this issue.

Sincerely,

--
Hajimu UMEMOTO @ Internet Mutual Aid Society Yokohama, Japan
ume at mahoroba.org  ume@{,jp.}FreeBSD.org
http://www.imasy.org/~ume/