something is wrong after 9.2 to 10.0

[SAITOU Toshihide]

In message: <845B3D92-A997-4872-AFBB-BCC23D96CD10 at jnielsen.net>
            John Nielsen <lists at jnielsen.net> writes:
> On Feb 14, 2014, at 8:34 PM, SAITOU Toshihide <toshi at 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.
>> 
>>  - Sometimes email transmission failed with
>>    `stat=Deferred: 452', maybe when the size is large.
>> 
>>  - Firefox failed to post a form of web page on https.
>> 
>>  - Cadaver is no longer able to put file.
>> 
>> But if I delete the following rule, the problem don't occur.
>> 
>>  00050 352686 304039811 nat 123 ip4 from any to any via alc0
>> 
>> And the related rc.conf entry is here:
>> 
>>    firewall_enable="YES"
>>    firewall_type="open"
>>    firewall_quiet="NO"
>>    firewall_logging="YES"
>>    firewall_nat_enable="YES"
>>    firewall_nat_interface="alc0"
>> 
>> 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

Wow! "ifconfig alc0 -tso" solves the problem.
Thank you!

-- 
SAITOU Toshihide