I'm trying to understand how the option prefix_filter is supposed to work in /etc/config/dhcp. I have the following ULA in /etc/config/network:
# uci show network.globals
network.globals=globals
network.globals.ula_prefix 'fd00:beef::/48'
If I wanted RA to advertise just that ULA prefix (and not other prefixes from ISP) to internal computers, is prefix_filter supposed to control RA with the following entry?
# uci show dhcp.lan.prefix_filter
dhcp.lan.prefix_filter 'fd00:beef::/48'
Neither do I because the option value 'globals' don't work with ip6class. That being said, I don't want to limit br-lan to ULA only because I'll like to allow static IPv6 machines to continue using public prefixes.