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To: "questions@freebsd.org" <questions@FreeBSD.ORG>
From: Mark Edwards <mark@antsclimbtree.com>
Date: Fri, 25 Nov 2005 11:11:07 -0800
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Subject: verrevpath -- ipfw: unknown argument ``not''
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I am trying to implement the verrevpath suggestion in the ipfw man  
page, as follows:

>      The verrevpath option could be used to do automated anti- 
> spoofing by
>      adding the following to the top of a ruleset:
>
>            ipfw add deny ip from any to any not verrevpath in

However, when I try to add the rule, I get an error:

> lilbuddy:~ paimin$ ipfw add deny ip from any to any not verrevpath in
> ipfw: unknown argument ``not''

Can someone tell what is causing this syntax to fail?  Thanks!

--
Mark Edwards