How to clear ISP traffic with OpenWrt?

[Hudra]

To be clear I just wanted to help the op. I don’t have any issues with DSCPCLASSIFY. I’m using it and everything works as it should. My isp doesn’t mark my incoming packets so it’s hard for me to test the op’s use case. I would have to set up two routers with the upstream router marking packets and not washing them.

@moeller0

But if it did that then cake would only ever see the ISPs DSCPs, is that what you observe?

No, with DSCPCLASSIFY DSCPs are also restored before from conntrack.

@yelreve

Enabling squash/wash has the effect of making cake overwrite the DSCP to 0 after passing through the tc qdisc, however DSCP classify would re-apply it from the conntrack for lan bound packets.