Marcin Giedz schrieb: > 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? Your providing too little information, so nobody can help you - even if he/she desired to do so. Hmm, iptables isn't known for unreliability. Did you tcpdump on the routers outgoing interface ? What about TOS there ? I read your previous posting again, and your problem seems to be routing or iptables (not really sure). Why do you think that setting TOS to "Minimize-Delay" could help to solve your problems ? Have a nice time, Joerg
