ECN problem?

[Pawel Pilat <poster_pl@yahoo.com>]

Hello everyone,
it's my first post on this list so plese understanding
...
I think that i have problem with ECN , this is my
situation:

IN--->R--->ISP

where:
IN - my internal net
R - my linux router (2.4.25, ipt-1.2.9)
ISP - my ISP

so when i trying to connect from internal net to
Internet i expirencing very slow transfers (500 - 700
bps) but from router everything is ok (transfer rate
50 - 60 kbps)
when i used tcpdump on external interfece on router i
realized that my ISP sends to me in every TCP packet
TOS field set to 0x03 (ECN-CT + ECN-CE)
i think that is the problem

i tried using:

iptables -t mangle -A PREROUTING -i $EXTIF -j TOS
--set-tos 0x00 but without any result

my question is:
1.it is possible to set linux box to ignore this
fields in packets?
2. there is another way to solve the problem?

thank for advices
best regards

POSTER PL



		
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