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Date:      Mon, 17 Feb 2014 14:20:20 -0700
From:      John Nielsen <lists@jnielsen.net>
To:        SAITOU Toshihide <toshi@ruby.ocn.ne.jp>
Cc:        freebsd-ipfw@freebsd.org
Subject:   Re: something is wrong after 9.2 to 10.0
Message-ID:  <845B3D92-A997-4872-AFBB-BCC23D96CD10@jnielsen.net>
In-Reply-To: <20140215.123424.159647737.toshi@ruby.ocn.ne.jp>
References:  <20140215.123424.159647737.toshi@ruby.ocn.ne.jp>

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On Feb 14, 2014, at 8:34 PM, SAITOU Toshihide <toshi@ruby.ocn.ne.jp> =
wrote:

> I'm using FreeBSD as desktop and also using as nat gateway.
> After update from 9.2 to 10.0, some network problem occurs
> on this desktop machine's environment.
>=20
>  - Sometimes email transmission failed with
>    `stat=3DDeferred: 452', maybe when the size is large.
>=20
>  - Firefox failed to post a form of web page on https.
>=20
>  - Cadaver is no longer able to put file.
>=20
> But if I delete the following rule, the problem don't occur.
>=20
>  00050 352686 304039811 nat 123 ip4 from any to any via alc0
>=20
> And the related rc.conf entry is here:
>=20
>    firewall_enable=3D"YES"
>    firewall_type=3D"open"
>    firewall_quiet=3D"NO"
>    firewall_logging=3D"YES"
>    firewall_nat_enable=3D"YES"
>    firewall_nat_interface=3D"alc0"
>=20
> Is there any clue?

I saw a similar problem when using NAT on a TSO-enabled interface in =
FreeBSD 10. Try running "ifconfig alc0 -tso" and/or adding "-tso" to the =
ifconfig_alc0 entry in your /etc/rc.conf. See also the related entry in =
the BUGS section at the end of ipfw(8) man page.

JN




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