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Date:      Sun, 22 Jul 2012 23:31:54 -0700
From:      Eitan Adler <lists@eitanadler.com>
To:        "Herbert J. Skuhra" <h.skuhra@gmail.com>
Cc:        freebsd-questions@freebsd.org
Subject:   Re: Jails on FreeBSD 9.0
Message-ID:  <CAF6rxgmPWc4HmLpsR9q9RPZ2KKmFj%2B%2BmvAPwYHZNFRCLL9tn6w@mail.gmail.com>
In-Reply-To: <87y5mbdqko.wl%h.skuhra@gmail.com>
References:  <87fw8yariq.wl%h.skuhra@gmail.com> <CADfJ1PYDaJ-ogJq8ewvzLk3sCjqrE0bw36grVSAn2_16dZHDhw@mail.gmail.com> <CAPd55qAiWO5eQ=KkweuWir%2BgD4C1LSSbiky2VgZwiDpwwUyJaw@mail.gmail.com> <CADfJ1Pa1dpZ5StTTrG=8KVnFNzUuK58MhLXrg4prAqq4cKLK2g@mail.gmail.com> <CAMaK76HJfvVpn8qURDoUbBVKsowgrqmO7Nv=VXrtU0Yq4VbohA@mail.gmail.com> <CADfJ1PaaqC6CupoWww5OXy%2BG1b6jXGadXN%2B4L63QVPmCwP2Fgg@mail.gmail.com> <CADfJ1PZfTEYFv-zHaW8rdwCaJy8VnwZx_N%2BCNgCJEzyMsuLNtg@mail.gmail.com> <CADfJ1PZvM35jjnn-TPpCkhDAQkGA8bet5aVHuj__3GqCHEr96g@mail.gmail.com> <CADfJ1PZuJf0QFoKrZVwQex9oSAOZ-gq3ij5rpfQex8e7qsU1DA@mail.gmail.com> <87y5mbdqko.wl%h.skuhra@gmail.com>

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On 22 July 2012 21:55, Herbert J. Skuhra <h.skuhra@gmail.com> wrote:
> On Sat, 21 Jul 2012 16:10:56 +0200
> "Herbert J. Skuhra" <h.skuhra@gmail.com> wrote:
>
>> On Sat, Jul 21, 2012 at 11:24 AM, Herbert J. Skuhra <h.skuhra@gmail.com> wrote:
>> > Hi,
>> >
>> > ok, this is obviously a pf problem and the reason why the network in
>> > the jail doesn't work.
>> >
>> > ifconfig lo1 create
>> > ifconfig lo1 10.0.0.10 netmask 0xffffff00
>> > nc -s 10.0.0.10 xx.xx.xx.xx 25
>> >
>> > With pf: connections fails; server receives SYN-ACK, but nc continues
>> > sending SYNs until nc gives up
>> >
>> > With ipfw: connection OK
>> >
>> > On my Soekris box at home (9.1-PRERELEASE i386) both ipfw and pf works.
>>
>> Could this be a bug in the fxp driver?
>> I have a 2nd machine with a fxp nic. Same problem.
>
> Thanks to yongari@ the issue could be resolved on both machines by
> disabling receive checksum offloading (ifconfig fxp0 -rxsum).

If this is a fxp bug, can you please file a PR explaining the issue
and how to reproduce it?


-- 
Eitan Adler



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