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Old 12th May 2008
mitak mitak is offline
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Default ipfw destination nat problem

Hi,
I have tried to make destination nat with freebsd the last few days, but unfortunately with no success. I've been doing it before with Linux, but wanted to try with freebsd as it has other advantages over Linux. The scenario is the following:
We are an ISP and every month with have to warn clients from the internal network that have not payed, by redirecting their packets to a web server again in the internal network.
I have tried all possible options with natd and .. no success.

Please HELP!
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Old 12th May 2008
J65nko J65nko is offline
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On FreeBSD you could try the pf packet filter. Then it would be something like this.
Code:
ext_if="re0"
table <not_paid> persist
rdr pass on $ext_if inet proto tcp from <not_paid> port 80  ->  192.168.1.6 port 80
The table <not_paid> can be filled with IP addresses like this
Code:
pfctl -t not_paid -Tadd 204.92.77.11
See http://daemonforums.org/showthread.php?t=108 for more information about pf
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Old 15th May 2008
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l2fl2f l2fl2f is offline
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Hello,

add ipfw rules based on their ip familly and do a redirect

or give what you try to do to find the problem.
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