rad(8) question

Hi,

I am playing with rad(8) in my LAN:

cat /etc/rad.conf
interface trunk0 {
prefix fd94:eb64:36ae:44b9::/64
default router yes
dns {
nameserver fd94:eb64:36ae:44b9::1
}
}

and IP addresses are assigned as expected, but problem is that rad(8) send router address from link-local address-space (like fe80::aa3f:4f6c:ea26:6989 - trunk0 interface) of the router, whereas correct router IP address should be from prefix range.
How should I fix it ? Or what I am doing wrong ?

thanks,

kolargol