Hello A few days ago I wrote post about "Ip:Port REDIRECTION problem". Since that time I have searched once again iptables HOW-TOs and find that one of the solutions for my problem is changing TOS to other value. This is done by simple rule: iptables -t mangle -A PREROUTING -p tcp --dport 4000 -j TOS --set-tos 0x10 Next I redirect port 4000 from this router to another machine: iptables -t nat -A PREROUTING -p tcp --dport 4000 -j DNAT 192.168.49.60:80 This works OK on router when this rule is being ran but when I dump (tcpdump) packtes on 192.168.49.60, "ToS" value is changed to 0x0. No any rules are being set on 192.168.49.60 - simple machine. Why "ToS" is changing? What do I wrong? Thanks, Marcin
