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Date:      Thu, 6 Dec 2001 07:34:57 +0000
From:      Mike D <d01f1n@yahoo.com>
To:        freebsd-security@FreeBSD.ORG
Subject:   Re: ipfw/natd problem?
Message-ID:  <20011206073509.QFVP16633.mta01-svc.ntlworld.com@there>
In-Reply-To: <20011205233229.R3061@blossom.cjclark.org>
References:  <20011206071926.QTHW27606.mta05-svc.ntlworld.com@there> <20011205233229.R3061@blossom.cjclark.org>

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Anyway I can suppress these / log them instead? Should I be getting them at 
all - have I forgotten to configure something for natd?

On Thursday 06 December 2001 7:32 am, Crist J . Clark wrote:
> On Thu, Dec 06, 2001 at 07:19:14AM +0000, Mike D wrote:
> > I'm getting this error all the time since I've set up my FreeBSD 4.4 with
> > ipfw and natd as part of the kernel.
> >
> > Dec  6 00:03:09 host4 natd[195]: failed to write packet back (Permission
> > denied)
> > Dec  6 00:13:53 host4 last message repeated 26 times
> >
> > This is the rules list I have for ipfw:
> >
> > 00050   24    1194 allow ip from any to any via lo0
> > 00051    0       0 deny ip from any to 127.0.0.0/8
> > 00052    0       0 deny ip from 127.0.0.0/8 to any
> > 00060 1098  282242 divert 8668 ip from any to any via xl1
> > 00100    0       0 allow ip from any to any via lo0
> > 00100 4840 3315967 allow ip from any to any via xl0
> > 00200    0       0 deny ip from any to 127.0.0.0/8
> > 00200    1     540 allow udp from 194.168.8.100 53 to any in recv xl1
> > 00201   37   10088 allow udp from 194.168.4.100 53 to any in recv xl1
> > 00202    1      59 allow udp from any to 194.168.8.100 53 out xmit xl1
> > 00203   37    2429 allow udp from any to 194.168.4.100 53 out xmit xl1
> > 00300    0       0 deny ip from 127.0.0.0/8 to any
> > 00400   39    2232 allow tcp from any to any out xmit xl1 setup
> > 00401  933  257294 allow tcp from any to any via xl1 established
> > 00450    0       0 allow tcp from any to any 22 setup
> > 50000   50    9600 unreach host ip from any to any
>
> There they are. Any of those that went through natd(8) and hit this
> rule will cause that.
>
> > 65535    1     328 deny ip from any to any
> >
> > Any suggestions as to what it could be? I'm really supmped - any help
> > would be appreciated.

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