ipfw final rule

Daan Vreeken [PA4DAN] Danovitsch at Vitsch.net
Mon Jun 2 11:42:33 PDT 2003

On Monday 02 June 2003 18:02, Gary Aitken wrote:
>    I was considering turning on bridging, which requires the final ipfw
>    rule to be allow, not deny.
>    So I added a deny rule at 65534, but temporarily left the default deny
>    rule in place in the kernel.
>    Interestingly, my log shows the following:
> > 65534   582   58547 deny ip from any to any
> > 65535     3     234 deny ip from any to any
> This looks like an impossible situation, since the last 3 should have been
> caug ht by the previous rule.
I think they got caught in the split second between the time of flushing out 
all rules and loading a new ruleset.
At that time 65535 was the only rule in the ruleset and 3 packets must have 
reached your machine...


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