On Thu, 2011-12-01 at 12:14 +1100, Kilburn Abrahams wrote:
> Using 4.4.23.2 on a single host. A host x.x.x.x is sending traffic
> although it blacklisted and blocked rules
> 
> rules:
> 
> DROP                net:x.x.x.x/21     $FW         -       -       -
> DROP                net:x.x.x.x/22     $FW         -       -       -
> DROP                $FW         net:x.x.x.x/21     -       -       -
> DROP                $FW         net:x.x.x.x/22     -       -       -
> 
> blackist
> 
> #ADDRESS/SUBNET     PROTOCOL    PORT    OPTIONS
> x.x.x.x/21     -           -       src,dst
> x.x.x.x/22     -           -       src,dst
> 
> I see no record of the host in the logs. App darkstat indicates that
> host is sending traffic on random udp ports and it shows when last the
> host connected and the amount of traffic. This is a little puzzling.
> Is the something I am overlooking.

Yes -- You are overlooking the fact that Darkstat uses libpcap to
capture traffic; therefore, it captures the UDP packets *before* they
are dropped by the Shorewall-generated ruleset. I assume that you have
not set a value for BLACKLIST_LOGLEVEL, in which case your blacklisting
rules don't generate log messages.

-Tom
-- 
Tom Eastep        \ When I die, I want to go like my Grandfather who
Shoreline,         \ died peacefully in his sleep. Not screaming like
Washington, USA     \ all of the passengers in his car
http://shorewall.net \________________________________________________


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