At 05:23 PM 1.6.2003 +0000, Jonathan Belson wrote:
>Ceri Davies wrote:
>> On Mon, Jan 06, 2003 at 05:02:01PM +0000, Jonathan Belson wrote:
>> 
>>>I've just been looking into the 'me' option for ipfw:
>>>
>>>me      matches any IP address configured on an interface in the
>>>        system.  The address list is evaluated at the time the
>>>        packet is analysed.
>>>
>>>Since the machine is a gateway, it has two network cards.  Will
>>>'me' match *both* IP address or just the first one it comes
>>>across?  I only really want it to match the IP address of the
>>>external interface, not the internal one.
>> 
>> Both, I'm afraid.
>
>Hmm, I suppose since tests for IP spoofing through the external
>interface have already been carried out by that point, it isn't
>that much of a problem.
>
>Does the fancy-pants new IPFW2 allow more control for 'me'?
>
>
>--Jon
>

The best way to do this is to use "awk" to determine and set a variable for
the external IP every time it changes and then refer to that variable in
your rules.


Best regards,
Jack L. Stone,
Administrator

SageOne Net
http://www.sage-one.net
[EMAIL PROTECTED]

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