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Date:      Thu, 24 Apr 2014 23:17:33 +0200
From:      Andrea Venturoli <ml@netfence.it>
To:        freebsd-net@freebsd.org
Subject:   Re: Network troubles after 8.3 -> 8.4 upgrade
Message-ID:  <53597F6D.8090201@netfence.it>
In-Reply-To: <5352B005.8090405@netfence.it>
References:  <53503BC3.6040806@netfence.it> <CDFEE4B3-CFAD-4E99-B5FE-731FB3C3C6FC@jnielsen.net> <5352B005.8090405@netfence.it>

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On 04/19/14 19:19, Andrea Venturoli wrote:

> Hmmm, sounds a bit complicated... would simply dropping if_em.ko in from
> a 8.3 box work?

Ok, I'll answer myself.

I'm now running 8.3's if_em.ko (binary from another system), on an 8.4 
kernel.
The behaviour is the same as before.

However, further researches show em is not the culprit.

Rather, ipfw is: in fact dynamic rules are created, but will always 
timeout after 20 s (no matter if idle or not).
Someway the outgoing packet triggers the dynamic rule, but it doesn't 
seem to get past the SYN phase.

The ruleset here is quite a mess, so I need to investigate it better.
What suprise me is that it worked differently with 8.3!

Well, at least now I know where to look...

Thanks to anyone who replied.

  bye
	av.





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