[Cake] Cake with Deep Packet Inspection

[Outback Dingo]

On Fri, Nov 11, 2016 at 10:42 AM, Noah Causin <n0manletter at gmail.com> wrote:
> I took an extra router I had and bridged two ports on the router's switch,
> so they just pass traffic. (eth0.2 and eth0.3)
>
> Clients >-[Main Router] --[Extra Router]--[Cable-Modem]
>
> The extra router is passive.  It acts like it's part of the Ethernet cable
> between the main router and cable modem.  It does not interfere.
>
> The extra router needs these packages:
>
> kmod-ebtables, kmod-ebtables-ipv4, kmod-crypto-pcompress and the two
> packages compiled from the Makefile I showed below (iptables-mod-ndpi and
> iptables-mod-ndpi)
>
> I edited /etc/sysctl.conf and change the last two lines to this:
>
> net.bridge.bridge-nf-call-ip6tables=1
> net.bridge.bridge-nf-call-iptables=1
>
> This enables bridge firewalling, so the traffic between the two ports can be
> marked.
>
> I then added firewall rules to LuCIs custom firewall rules tab.
>
> Example Rules, modify classes as desired:
>
> iptables -t mangle -A FORWARD -m ndpi --steam -m mac ! --mac-source Your
> Main Router's Mac Address -j DSCP --set-dscp-class cs0
> iptables -t mangle -A FORWARD -m ndpi --youtube -m mac ! --mac-source Your
> Main Router's Mac Address -j DSCP --set-dscp-class cs2
>
> iptables -t mangle -A FORWARD -m ndpi --netflix -m mac ! --mac-source Your
> Main Router's Mac Address -j DSCP --set-dscp-class cs3
> iptables -t mangle -A FORWARD -m ndpi --skype -m mac ! --mac-source Your
> Main Router's Mac Address -j DSCP --set-dscp-class cs4
>
> Have your main router use some form of DiffServ for both upload and download
> on its WAN interface.  For upload traffic, you just need the two packages
> from the makefile to be installed on the main router and create firewall
> rules like this:
>
> iptables -t mangle -A FORWARD -o eth2 -m ndpi --netflix -j DSCP
> --set-dscp-class cs3
> iptables -t mangle -A FORWARD -o eth2 -m ndpi --skype -j DSCP
> --set-dscp-class cs4
>
> If you need help building a custom firmware image, just let me know.
>

Ok got it, its in-line.... right now im fighting the GFW of China
using shadowsocks and chinadns so im pretty customized already,
i was having issues with sqm and kernel segfaults on 4.4.30 ill build
a cake and DPI image and see how that goes, maybe Ill try this
after i deem sqm is stable with cake on this build. It a ZBT-WG3526
router... so its ralink based

>
> On 11/10/2016 9:06 PM, Outback Dingo wrote:
>
> On Fri, Nov 11, 2016 at 9:55 AM, Noah Causin <n0manletter at gmail.com> wrote:
>
> I finally got my project working.
>
> I integrated the NDPI Deep Packet Inspection engine into my LEDE build, so I
> could prioritize applications using Cake.
>
> http://www.ntop.org/products/deep-packet-inspection/ndpi/
>
> NDPI integrates into IPTables, which allows me to DSCP mark packets.  Cake
> reads the DiffServ markings and puts the traffic into appropriate classes.
>
> I found a Makefile which successfully compiles:
> https://github.com/981213/lede_src/blob/0d344bc2958838dcbc547a8f0a3d8842e6f6d2f8/package/my_package/ndpi-netfilter/Makefile
>
> The system works very well.  Steam traffic is deprioritized to allow
> applications like YouTube, Netflix, and Skype to receive higher amounts of
> the available bandwidth.
>
> What I do for ingress is bridge two ports on an extra router, enable bridge
> firewalling, and create IPTables rules to mark downstream packets.  The
> router I use is a D-Link DGL-5500, which is comparable to an Archer C7.
>
> IPv6 support is not available in this netfilter module, but the IPv4 support
> is great.
>
> Noah Causin
>
> very nice.... however, can you describe a bit better how you
> configured for ingress ? a second router?  configuration file ? your
> high level description seems a bit confusing to me
>
>
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