KONG ipq806x builds
/ EA8500 / R7500v2 / R7800 / C2600 / D7800
LuCi with https
Privoxy WEB proxy
Wake on LAN
HTTPS DNS Proxy
QoS / SQM 100+mbps support and built-in overhead estimator*
*so no need to use link layer settings. start with none (default) and further tuning if needed
*use this to calculate the exact overhead value https://github.com/moeller0/ATM_overhead_detector
*for those with 200+mbps simply disable the entire sqm or set the associated line to 0. so for example 200/20 line sqm would be 0/18, 200/200 line would be to disable the entire sqm (you don't really need it)
*every setup/env is different, use recommendation at your own risk. tune to fit your own needs.
I'm not the author of these builds, but Kong is, who is a respected former member of dd-wrt community.