problem in radvd!

["hyy" <hyy@cslg.cn>]

Hi!
   I want radvd send route advertisement to 2 subnets,and
let the subnet notes configure ipv6 address
automatically.The linux box installed radvd has 2 ethernet
cards,eth0 connect the subnet fec0:0:0:1::/64,eth1 connect
the subnet fec0:0:0:2::/64,but I wonder how to config de
configfile?
   Anyone?
   Thanks!