Weird problems with 'pf' (on both 5.x and 6.x)

[Stefan Bethke]

Am 28.07.2006 um 03:57 schrieb Garance A Drosihn:

> It occurred to me that it might be more informative to
> see the transaction from the *freebsd* side of things,
> since that's the machine running pf!   So, here is a
> similar set of two lpq's, as seen from the print-server
> side of the connection.  It seems to be telling the
> same basic story, as far as I can tell.

It's just showing that no ACKs come back.  Can you see if anything  
showing pflog0 with tcpdump? That output should also tell you which  
rule forced the rejection.

What I do find curious is that the client keeps using port 1023  
consistently.  I was under the impression that reusing the same port  
number (thus having the same src-ip/port+dst-ip/port tuple) shouldn't  
work, because "old" packets could arrive after the original  
connection was closed; that's what the CLOSE_WAIT state in netstat is.


Stefan

-- 
Stefan Bethke <stb at lassitu.de>   Fon +49 170 346 0140