Date: Mon, 1 Oct 2001 13:50:51 +0300 From: "Alexander S. Usov" <lex@itv.kiev.ua> To: questions@FreeBSD.ORG Subject: Need a help with ipfw configuration Message-ID: <1251438768.20011001135051@itv.kiev.ua>
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Hello everybody,
I have a little question about ipfw.
Can anybody explan me the flow of the packets for the following
configuration:
192.168.1.1 192.168.0.2
{local network}--{rl0 |FreeBSD host| rl1}--{IDSL router}
The thing I have to do is traffic accounting (with IPA).
IPFW config looks like that:
$fw -f flush
# local loopback
$fw add 10 allow all from any to any via lo0
# general limitaions
$fw add 40 deny all from 192.168.0.0/16 to any in via rl1
$fw add 40 deny all from any to 192.168.0.0/16 out via rl1
$fw add 40 deny all from 172.16.0.0/12 to any in via rl1
$fw add 40 deny all from any to 172.16.0.0/12 out via rl1
$fw add 40 deny all from 10.0.0.0/8 to any in via rl1
$fw add 40 deny all from any to 10.0.0.0/8 out via rl1
$fw add 50 deny all from not 192.168.1.0/24 to any in via rl0
$fw add 50 deny all from any to not 192.168.1.0/24 out via rl0
# there is a counters
for i in `/usr/bin/jot 254`
do
$fw add $((11000+$i)) count all from 192.168.1.$i to not 192.168.1.0/24 in via rl0
$fw add $((11000+$i)) count all from not 192.168.1.0/24 to 192.168.1.$i out via rl0
done
# NAT
$fw add 12000 divert natd all from any to any via rl1
.............
As I understand, couners would work on the second pass, but I should
be sure.
PS.
Please, send a copy of the rely to me, I am not subscribed to the
list.
PPS.
Sorry for my bad english.
--
Best regards,
Alexander mailto:lex@itv.kiev.ua
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