I meant B gets always 1/3 of the bandwidth. It also gets worse if A is using bittorrent. The setup with cake doesn't involve tc-flow or marking packets with iptables.

On October 16, 2016 11:57:03 AM EDT, "G. Amanakis" <g_amanakis@yahoo.com> wrote:
>I am trying the cobalt branch along with the 950-add-cake-to-tc.patch
>from lede-git on Archlinux. However, I cannot get per-host fairness as
>expected, neither with IPv4 behind NAT, nor with IPv6. Having host A
>downloading from 2 sites and host B from 1, A gets always 1/3 of
>available bandwidth. I am using "bestefforts triple-isolate nat" on
>egress and ingress ifb of the WAN interface. Kernel 4.4.24 and 4.7.6.
>
>The same setup with the same bandwidth limiting (3300kbit/900kbit)
>works as expected with fq_codel, tc-flow using mark for hashing, and
>iptables with HMARK using source egress ip for hashing and CONNMARK on
>WAN.