From owner-freebsd-security  Thu Apr  4 15:25:39 2002
Delivered-To: freebsd-security@freebsd.org
Received: from www.kpi.com.au (www.kpi.com.au [203.39.132.210])
	by hub.freebsd.org (Postfix) with ESMTP id 32B3037B423
	for <freebsd-security@FreeBSD.ORG>; Thu,  4 Apr 2002 15:24:54 -0800 (PST)
Received: from kpi.com.au (localhost.kpi.com.au [127.0.0.1])
	by www.kpi.com.au (8.9.3/8.9.3) with ESMTP id JAA44780;
	Fri, 5 Apr 2002 09:24:55 +1000 (EST)
	(envelope-from johnsa@kpi.com.au)
Message-ID: <3CACE0AD.90403@kpi.com.au>
Date: Fri, 05 Apr 2002 09:24:29 +1000
From: Andrew Johns <johnsa@kpi.com.au>
User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-GB; rv:0.9.4) Gecko/20011128 Netscape6/6.2.1
X-Accept-Language: en-gb
MIME-Version: 1.0
To: FreeBSD <freebsd@icablenet.com.br>
Cc: freebsd-security@FreeBSD.ORG
Subject: Re: IpFilter / IpFireWall
References: <a8ii7f+9qbc@eGroups.com> <001f01c1dc2c$23f86e40$0225d7c8@broilo>
Content-Type: text/plain; charset=us-ascii; format=flowed
Content-Transfer-Encoding: 7bit
Sender: owner-freebsd-security@FreeBSD.ORG
Precedence: bulk
List-ID: <freebsd-security.FreeBSD.ORG>
List-Archive: <http://docs.freebsd.org/mail/> (Web Archive)
List-Help: <mailto:majordomo@FreeBSD.ORG?subject=help> (List Instructions)
List-Subscribe: <mailto:majordomo@FreeBSD.ORG?subject=subscribe%20freebsd-security>
List-Unsubscribe: <mailto:majordomo@FreeBSD.ORG?subject=unsubscribe%20freebsd-security>
X-Loop: FreeBSD.org

FreeBSD wrote:

> to use ipfw&ipf use this in your kernel! :)
> 
> options         IPFIREWALL
> options         IPDIVERT
> options         IPFIREWALL_FORWARD
> options         IPFIREWALL_VERBOSE
> options         IPFIREWALL_VERBOSE_LIMIT=100
> options         IPFIREWALL_DEFAULT_TO_ACCEPT
> options         IPFILTER
> options         IPFILTER_LOG
> options         TCPDEBUG
> options         TCP_DROP_SYNFIN
> options         ICMP_BANDLIM
> options         DUMMYNET
> options         IPSTEALTH
> 
> 
> ----- Original Message ----- 
> From: "ozkan_kirik" <ozkan_kirik@yahoo.com>
> To: <freebsd-security@FreeBSD.ORG>
> Sent: Thursday, April 04, 2002 6:57 PM
> Subject: IpFilter / IpFireWall
> 
> 
> 
>>i am new to FreeBSD. 
>>i use freebsd v4.5 Release #0.
>>
>>i am trying to setup an firewall.
>>but i couldnt block or pass any IP.
>>i think i have a mistake about my IPF&IPFW settings.
>>
>>in my kernel:
>>options   IPFILTER
>>options   IPFILTER_LOG
>>options   IPFIREWALL
>>options   IPFIREWALL_VERBOSE
>>options   IPFIREWALL_VERBOSE_LIMIT=10
>>
>>but my rules doesnt work.
>>for example:
>># ipfw add deny tcp from 193.255.128.250 to any
>>**answer is:
>>ipfw: getsockopt(IP_FW_ADD): Protocol not available
>>
>>when i saw this error i get crazy
>>

Actually I believe that the "Protocol not available" means that 
either:
a) he's not actually built the new kernel after editing the 
config file; or
b) he hasn't rebooted with the new kernel.

That message only appears (AFAIK) when IPFIREWALL is not in the 
_currently running_ kernel.

Cheers


To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-security" in the body of the message