[Dnsmasq-discuss] [QUESTION] Why constructor in ipv6 range not work as expected?

[zhiqiang wang]

Hello all.
    in my dnsmasq.conf,I put a dhcp-range as follows:
dhcp-range=tag:br0,::10,::ffff,constructor:br0,ra-names,1440m
br0 ipv6 address is:a:b:c:d::1/64

I wish dnsmasq will do router advertise on a:b:c:d::, however, dnsmasq
detected ra prefix ::10 and never send ra message on br0.

However, if I change dhcp range to
tag:br0,::1,::ffff,constructor:br0,ra-names,1440m
everything works fine. dnsmasq log shows dnsmasq-dhcp[10809]:
RTR-ADVERT(br0) a:b:c:d:: and my client can setup it's ip address
a:b:c:d:1:2:3:4

any ideas?
thanks.
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