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 __________________________________ Do you Yahoo!? Take Yahoo! Mail with you! Get it on your mobile phone. http://mobile.yahoo.com/maildemo