LARTC - Jun 2005 - iproute2: Problem in adding xfrm state

Hi

I have the latest iproute2 and am trying to get the following command working


$ ip xfrm state add src dead::4 dst dead::2 proto esp spi 0x201 enc 3des-cbc
0x<48_bit_key> auth hmac-md5 0x<32_bit key> mode tunnel

gives the following error
RTNETLINK answers: Function not implemented.


Any pointers to it.. Please help me out..Am i doing the right way to add to SAD
?
--
abhinav pathak