The IPMARK target makes it very efficient to assign packet marks based
on IP address. Unfortunately, there is no efficient way to map the many
mark values to HTB classes. As a result, the IPMARK feature introduced
in Shorewall 4.3.9 is still very inefficient. There was once an
IPCLASSIFY target in Netfilter which made the translation of IP address
to CLASS ID very efficient. I'll see what I can do about resurrecting it.

In 4.3.10, IPMARK will be replaced with a different facility that is
very efficient. Unfortunately, the new facility only works when shaping
occurs on the firewall's internal interface(s) since it is based
entirely on tc filters rather than on packet marking. Still, the new
facility allows administrators to define separate classes for each
internal system to control download bandwidth usage.

-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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