IPFW Problems?

[R. B. Riddick]

--- Noah Silverman <noah at allresearch.com> wrote:
> Take the following rules:
> ipfw add 00280 allow tcp from any to any 22 out via bge0 setup keep- 
> state
> ipfw add 00299 deny log all from any to any out via bge0
> ipfw add 0430 allow log tcp from any to me 22 in via bge0 setup limit  
> src-addr 2
> ipfw add 00499 deny log all from any to any in via bge0
> 
I think rule 430 needs a keep-state, because u do not have a rule, that allows
out-going ssh packets for established tcp connections.

In addition to the before-mentioned "check-state" in the beginning u would need
a "keep-state" in rule 430...

> When I install this firewall configuration, I'm locked out of the  
> box.  An inspection of the logs shows that rule 499 is being  
> triggered by an attempted incoming connection.
> 
Hmm... That's strange... What about rule 299? There should be something about
rule 299 in the logs... Maybe I am wrong...


-Arne


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