Ploblem in ipv6 tunnel getting through NAT!

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

Hi,

   I want to establish a ipv6-in-ipv4 tunnel,but my network 
is intranet.Is there a method to make the ipv6-in-ipv4 
tunnel getting through the ipv4 NAT,my ipv4 global address 
is 210.28.160.65,interior ipv4 address(behind the NAT) is 
10.28.78.65.
   Anyone?
   
   Alan!