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Date:      Wed, 3 Apr 2002 17:22:56 +0300 (EEST)
From:      locust <locust@sstc.kiev.ua>
To:        Alex <freebsd-reply@akruijff.dds.nl>
Cc:        <freebsd-questions@freebsd.org>
Subject:   Re: Berkeley packet filter question
Message-ID:  <20020403165741.N2095-100000@sstc.kiev.ua>
In-Reply-To: <515243789.20020403000434@dds.nl>

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On Wed, 3 Apr 2002, Alex wrote:



 l> Maybe it's a stupid question, but 'man bpf' don't let me know
 l> nothing with my problem.

 A> Isn't the berkeley packet filter called ipf?

 I mean that i have a problem with opening ports of FBSD with 'pseudo
device bpf' in kernel, via gateway Cisco router.

 I posting my pervious message again(fixed version):
 Please forgive me for mistakes in English
-------------------------------------------------------------------

I have installed frame-relay connection via Cisco 1700 router
in front of my FreeBSD 4.4 machine. Put NAT, access list on Cisco.
But  when i opened by Cisco's NAT the FreeBSD's services such as
apache server :

ip nat inside source static tcp 192.168.1.1 80 a.b.c.d 80 extendable

where 	192.168.1.1 - FreeBSD inside local area
 	a.b.c.d     - outside adress of Cisco

then port 80 become 'filtered' from outside on a.b.c.d..
When i take away 'pseudo-device bpf ' from kernel of FBSD
(recompile it), port 80 become 'open'.
So, what i must to do with bpf(maybe configure smth)
 for opening of my services without deleting bpf from kernel?
Without bpf it is no any trafshow, etc. :(
I am not a guru FreeBSD,i'm studying :)

I tried this situation with other systems (W2K, Linux)
 - there was no problems.
Apache on W2K and Linux was opened for outside, and
was successfuly browsed...

Please forgive my english.




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