ipfw with nat - allowing by MAC address

[Julian Elischer]

ok so I just emailed how I would do this.. Did you not receive it?


Lubomir Georgiev wrote:
>  OK people - here's the deal. I have tried the setup as described by 
> *Patrick
> Tracanelli at *click
> <http://lists.freebsd.org/pipermail/freebsd-ipfw/2007-April/002956.html>
> but the shitty thing still doesn't want to just let it be! Since I don't
> want to
> 
> 00500   468   30071 deny log logamount 100 ip from any to any MAC any
> any layer2 via xl0
> 
> 
>  I'm trying to integrate a rule that just skips the natd but still allows
> normal client -> freebsd box communication. The problem is -   I can
> manipulate layer2 any way I like e.g. use skipto with MAC as described and
> everything but as soon as I add a rule like this
> 
> ipfw add 500 skipto 1400 /after the divert natd/ all from any to any not
> layer2
> 
>  I lose worldwide connectivity. And if I don't add this rule my whole
> 192.168.1.0/24 segment in enabled because of the
> 
> 01203 divert 8668 ip from 192.168.1.0/24 to any out via fxp0
> 01205 divert 8668 ip from any to me in via fxp0
> 
>  Can someone please explain this? And just give the word and I'll send a
> more substantial part of the ruleset and the different strategies /of
> rulesets :)/ that I've tried.
>  The bottom line - Patrick's setup doesn't work, at least here. I'm certain
> that I've written the rules they're supposed to be /just change ip ranges,
> if names etc./
> 
>  10x in advance and please do bare with me...
>