Date: Wed, 5 Dec 2001 23:32:29 -0800 From: "Crist J . Clark" <cjc@FreeBSD.ORG> To: Mike D <d01f1n@yahoo.com> Cc: freebsd-security@FreeBSD.ORG Subject: Re: ipfw/natd problem? Message-ID: <20011205233229.R3061@blossom.cjclark.org> In-Reply-To: <20011206071926.QTHW27606.mta05-svc.ntlworld.com@there>; from d01f1n@yahoo.com on Thu, Dec 06, 2001 at 07:19:14AM %2B0000 References: <20011206071926.QTHW27606.mta05-svc.ntlworld.com@there>
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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.
--
"It's always funny until someone gets hurt. Then it's hilarious."
Crist J. Clark | cjclark@alum.mit.edu
| cjclark@jhu.edu
http://people.freebsd.org/~cjc/ | cjc@freebsd.org
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