OpenWrt is a software firewall, router and WIFI accesspoint solution available for different hardware systems (either created directly to run OpenWrt or as a replacement for the official firmware). it recently re-merged with the previously forked out LEDE project.
- IPv4 only: full support
- Dual-Stack: full support
- DS-Lite: full support (with additionally downloaded ds-lite package)
OpenWrt fully supports DS-Lite with the downloadable ds-lite package. Newer versions of the package seem to support automatic discovery of the AFTR address too.