From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andy Furniss Date: Sat, 27 Nov 2004 00:46:10 +0000 Subject: Re: [LARTC] outbound shaping Message-Id: <41A7CE52.1070904@dsl.pipex.com> List-Id: References: <41A3FECE.4070507@cfl.rr.com> In-Reply-To: <41A3FECE.4070507@cfl.rr.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: lartc@vger.kernel.org >>> I am running proftpd on (192.168.1.101) with the port set to 65437 and >>> with passive ports set to 50000-51000. Proftpd allows you to specify a >>> range of ports to use on passive transfers. I need to be able to limit >>> my outbound ftp traffic to 40 Kbytes per second. Could you post the bits of the proftpd config that do this - I have (but rarely use) proftpd and could test. >>> The only way I can see to do this is limit by marking packets with >>> iptables. I am marking traffic on 65436 which is the active ftp data >>> port (65437-1) and 50000-60000. Outbound shaping is working >>> fine....however....inbound ftp traffic is also being shaped to 40K. I >>> have no idea why. Is this when there is ftp traffic both ways or just inbound? >>> >>> Seems to me the below rules should mark outbound packets and shape only >>> outbound packets. I dont understand why inbound packets are getting >>> shaped. >>> >>> Here is the script: >>> #!/bin/bash >>> #shaping passive and active outbound ftp traffic on an internal computer >>> without affecting inbound and lan speed >>> >>> # mark the outbound passive ftp packets on ports 50000-51000 >>> iptables -t mangle -N MYSHAPER-OUT >>> iptables -t mangle -I OUTPUT -o eth0 -j MYSHAPER-OUT >>> >>> iptables -t mangle -A MYSHAPER-OUT -p tcp --sport 65436 -j MARK >>> --set-mark 20 >>> iptables -t mangle -A MYSHAPER-OUT -p tcp --sport 50000:51000 -j MARK >>> --set-mark 20 >>> iptables -t mangle -A MYSHAPER-OUT -m mark --mark 0 -j MARK >>> --set-mark 26 >>> >> >> >> 1) Are you sure these rules are correctly marking and that the marks >> exist at the time the tc filter sees the packet? My hunch is NOT. >> ASIDE: We _really_ need a way for filters to report hit counts! >> >> >> > No, I am not sure. I have used the command 'watch -n1 tc -s class ls > dev eth0' to see the packets flying but i dont really know how to make > sure they are being marked correctly. I must assume that ALL packets on > ports 65436 and 50000-510000 are being marked because they are being > shaped. Just not sure why incoming packets are being markek and > shaped. Outbound shaping is working just fine. You can see counters for iptables rules with iptables -t mangle -L -v -n Andy. _______________________________________________ LARTC mailing list / LARTC@mailman.ds9a.nl http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/