Hey George! I think youre right! I forgot to recompile my 2.4.20 kernel after I patched it. I now recall reading something similar to that before. I will look it up. THANKS! Regards edmund -----Original Message----- From: netfilter-admin@xxxxxxxxxxxxxxxxxxx [mailto:netfilter-admin@xxxxxxxxxxxxxxxxxxx] On Behalf Of George Vieira Sent: Thursday, October 30, 2003 9:52 AM To: eturner@xxxxxxxxxxxxx; netfilter@xxxxxxxxxxxxxxxxxxx Subject: RE: MAtching packets not sure but don't you need something patched/enabled in the kernel to allow the marked packets to work with tc?? something possibly like this? [*] IP: use netfilter MARK value as routing key or something.. Thanks, ____________________________________________ George Vieira > -----Original Message----- > From: Edmund Turner [mailto:eturner@xxxxxxxxxxxxx] > Sent: Thursday, 30 October 2003 12:34 PM > To: netfilter@xxxxxxxxxxxxxxxxxxx > Subject: MAtching packets > > > > > Hey guys and girls, how ur day? > I got a slight problem configuring tc on my firewall (traffic > control). > Before I get kicked out the door and sent to the LARTC forum, I would > like to add that the problem im facing is MARKING the packets via > iptables. > > Situation is as such > LAN --> Firewall --> Router -->Internet > | > | > --> DMZ > > So much for the Ascii artist in me. :) > The firewall has 3 interfaces: > Eth0 = LAN --> 100Mbps NIC > Eth1 = DMZ --> 100Mbps NIC > Eth2 = Internet --> 4MB link to internet > > Background: > DMZ Zone Eth1: Web/FTP, and SMTP servers. (100Mbps switches and NICs) > WEB/FTP server :10.100.1.1/24 > SMTP server:10.100.1.2/24 > > I need to mark packets for the LAN (192.168.0.0/16) to the DMZ server > (10.100.1.1) to classify them in classes. > > This is what I tried : > /sbin/iptables -A PREROUTING -i eth1 -d 10.100.1.1 -t mangle -j MARK > --set-mark 9 > /sbin/iptables -A PREROUTING -i eth1 -s 10.100.1.1 -t mangle -j MARK > --set-mark 9 > > > Traffic control does not seem to work when I mark the packets > as above. > It appears that the 'tc' does not recognize the marked packets. I > eventually marked them like this : > > Tc filter add dev eth2 parent 2:1 protocol ip prio 7 u32 match ip src > 10.100.1.1 classid 2:1 > > I would hope someone could point out my error in marking the packets. > > Another question, there shouldn't be any problem with marking > different > IPs with the same numerical mark, right? > Eg: > > /sbin/iptables -A PREROUTING -i eth1 -d 10.100.1.1 -t mangle -j MARK > --set-mark 9 > /sbin/iptables -A PREROUTING -i eth1 -d 10.100.1.2 -t mangle -j MARK > --set-mark 9 > > Any help is appreciated! > > > Regards > edmund > > >
