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#1 Additional way to mark packets for
I found an interesting patch while evaluating frottle
and searching for further information in google. What
the patch does:
"In addition, you can mark with iptables rules to select
high priority packets, eg
# Specify the firewall mark you want to be high priority
himark 123
plus creating iptables rules for this purpose, eg:
bash# iptables -t mangle -I OUTPUT -p tcp -m length
--length 0:100 \
-j MARK --set-mark 123
this rule will priorize short TCP packets, in
particular it can help remote TCP
transmit logic by quickly getting ACKs and thus don't
incorrectly assume that
are lost segments in the stream (should help
downloads); recall that "queued" TCP
retransmited segments are a VERY bad thing."
Original URLs are:
http://www.lugmen.org.ar/pipermail/lug-wireless/2003-August/004786.html
http://www.lugmen.org.ar/pipermail/lug-wireless/2003-August/004787.html
(the first message has the original patch, the second
has a minor modification included)
Original author of this patch is Juan Jose Ciarlante
(JuanJo).
I think this is a very useful patch and should be
included to the next release of frottle.
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user_id=1045
Mhh, yes, that's typical (another law from Murphy?): just
posted the link to patch #1, then found another version that
improves the patch.
So, the improved version from
http://www.lugmen.org.ar/pipermail/lug-wireless/2003-August/004802.html
allows to mark traffic for low or default priority. What one
then has is a more flexible way to control what type of
packets are priorised in which way.