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From: Jonathan Morton <chromatix99@gmail.com>
To: ching lu <lsching17@gmail.com>
Cc: cake@lists.bufferbloat.net
Subject: Re: [Cake] diffserv based on firewall mark
Date: Wed, 12 Oct 2016 10:26:20 +0300	[thread overview]
Message-ID: <4D2419FB-6649-4250-9D42-E6EDECFFCCDE@gmail.com> (raw)
In-Reply-To: <CACHiF8BDT2E5wn6K7844sRcLZymsZskXEff=nZLQug0bgr3pwQ@mail.gmail.com>


> On 12 Oct, 2016, at 08:52, ching lu <lsching17@gmail.com> wrote:
> 
> I deprioritize bittorrent traffic by marking related connections in
> iptables (e.g. detect by port number) and route them to corresponding
> HTB class and qdisc.
> 
> How can i archive the same goal using the cake qdisc?

Modify your iptables rules to set the DSCP rather than a kernel-internal mark.  You probably want "-j DSCP —set-dscp-class CS1”, as CS1 is the “bulk low priority” code.  Cake’s default Diffserv mode will pick that up appropriately.

You also need to make sure Cake sees your packets *after* they’ve been through the firewall, which generally means attaching it to the egress port in each direction, not the ingress port.  You’ve probably already done this, if you’re happy with your HTB setup.

If you have multiple LAN interfaces (eg, both Ethernet and wifi), you should loop the inbound traffic through a common IFB device (and attach Cake to that instead of the physical interfaces) to simplify configuration.

 - Jonathan Morton


  reply	other threads:[~2016-10-12  7:26 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-10-12  5:52 ching lu
2016-10-12  7:26 ` Jonathan Morton [this message]
2016-10-12  8:11   ` ching lu
2016-10-12  9:10     ` moeller0
2016-10-12  9:35       ` ching lu
2016-10-12 10:05         ` moeller0
     [not found]           ` <CACHiF8D=iF4cww0QRC-UODpvC=oRmchP6jp3tT2A-=9M2piy+g@mail.gmail.com>
     [not found]             ` <CACHiF8BH2Pfx7de8Se6pv83tHUx1enLt_pc1MBp=uSs2mD=kYA@mail.gmail.com>
2016-10-12 10:17               ` ching lu
2016-10-12 10:21                 ` Dave Taht
2016-10-12 11:10                   ` Kevin Darbyshire-Bryant
2016-10-12 12:07                   ` moeller0
2016-10-12 12:04                 ` moeller0
2016-10-12 12:40                   ` ching lu
2016-10-12 13:07                     ` moeller0
2016-10-13  0:08                       ` ching lu
2016-10-12 15:36                     ` Jonathan Morton
2016-10-12 20:19                       ` Sebastian Moeller
2016-10-13  0:19                       ` ching lu
2016-10-13  0:26                         ` David Lang
2016-10-12 19:42 ` Y
2016-10-12 19:59   ` Sebastian Moeller

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