Hi, I have IPv6 setup on my OpenWRT and with radvd set SLAAC for any host connected to my router and it's all working great. I also have a Mikrotik device with dhcpv6 client and I would like to setup my OpenWRT to delegate prefix (/48 I got from HE) to be splitted to /60 to that mikrotik. After looking https://wiki.openwrt.org/doc/uci/network6#downstream_configuration_for_lan-interfaces I tried to make couple changes to my /etc/config/network file to look like this
config interface 'henet'
option proto '6in4'
option peeraddr '216.66.87.14'
option ip6addr '2001:470:1f1a:30e::2/64'
option ip6prefix '2001:470:1f1b:30e::/64'
option tunnelid '314325'
option username ##########
option password ##########
config interface 'lan'
option proto 'static'
option ip6assign '60'
option ip6prefix '2001:470:210d::/48'
But it's not working, can someone please point me in the right direction?
You need to use /64, not /48 or /60.