SOLVED! Re: One OR MORE of source and destination addresses?

[Mark]

Bill Moran wrote:

>> Mark wrote:
>> 
>>> The goal is simple: I want to limit connections to port 25 to 32 in
>>> total, targeted at "me". And of those 32, only 4 per source. Like
>>> so: 
>>> 
>>> ipfw add 1 check-state
>>> ...
>>> ipfw add 11 allow tcp from any to me 25 setup limit dst-addr 32
>>> ipfw add 12 allow tcp from any to me 25 setup limit src-addr 4
>>> 
>>> Please, tell me then how "all wrong" this is. Because I *still* get
>>> the impression that rule 12 is never reached. And, so far, "ipfw
>>> show" does, indeed, only show activity on rule 11.
>> 
>> If at all possible, I would still like to hear a suggestion as to
>> how to combine the two rules. From my pov, the first "allow" in rule
>> 11 makes a packet pass, provided there are less then 32 connections
>> in total. Thus, rule 12 never gets invoked (which, indeed, seems to
>> be the case). 
> 
> How about using skipto instead of allow?  Thus, if it passes the
> first one, it can just skipto the next rule to be checked.  i.e.:
> 
> ipfw add 11 skipto 12 tcp from any to me 25 setup limit dst-addr 32
> ipfw add 12 allow tcp from any to me 25 setup limit src-addr 4
> 
> Thus, if rule 11 pases, it skips to rule 12.  If it fails, it should
> reject as always. The end result is that a packet _must_ pass both
> rules to be allowed.

Thanks!! This does, indeed, exactly what I want. :)

- Mark