On Jun 12, 2007, at 4:10 PM, Lubomir Georgiev wrote:
Second, since I'm going to be making changes to your ruleset in
order to
match it to my needs could you please comment it a little because I'm
relatively new to ipfw+dummynet and some of the lines seem *really*
strange
to me... I'm talking about the - iptos,proto,tcpflags, lowdelay and
iplen
commands. They don't make any sence to me and I couldn't find
anything about
the in the man pages... Maybe I'm just stupid? Would you please
explain if
you have the time....
You want to read "man ipfw" carefully.
The basic idea is that Mark is trying to match certain specific types
of traffic (ie, a packet with IPTOS_LOWDELAY set), or very short ACK-
only packets, in order to prioritize them over larger data-oriented
stuff like rsync in order to do better for interactive sessions, VoIP
traffic, and stuff like that.
--
-Chuck
PS: After you've read "man ipfw" carefully, think about it for a
while, play around with some simple rules, and then re-read it
again. It's not quite as dense as RFC-793, but it's not far off,
either. :-)
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