Thanks a lot for the reply. When the code can be build again, i would try that out. ( Latest openwrt git cant build (08.08.2018, ucert - libjson-c.so) )
Could you explain a bit more for understanding how flow-offloading differs from what the OEM firmware did on the lantiq devices? The OEM Firmware uses as far as i know hardware acceleration. I think flow-offloading in kernel 4.14 still dont use the hardware acceleration build in the chipset. Right?