sctp_darn: error setting peer_primary: Operation not permitted.

Issue

While doing the test with sctp_darn part of lksctp tools following error is seen for peer_primary operation:

[root@rhel6-5 ~]# sctp_darn -H 10.200.207.3 -B 10.200.206.3 -P 30001 -c 10.200.207.5 -c 10.200.206.5 -p 30000 -s -I
...
10.200.207.3:30001-XXXXXX:30000 Interactive mode> snd=30
Recieved SCTP_COMM_UP
New connection, peer addresses
10.200.207.5:30000
10.200.206.5:30000
10.200.207.3:30001-10.200.207.5:30000 Interactive mode>
...
10.200.207.3:30001-10.200.207.5:30000 Interactive mode> peer_primary=10.200.207.3
sctp_darn: error setting peer_primary: Operation not permitted.
10.200.207.3:30001-10.200.207.5:30000 Interactive mode> peer_primary=10.200.206.3
sctp_darn: error setting peer_primary: Operation not permitted.
10.200.207.3:30001-10.200.207.5:30000 Interactive mode> peer_primary=10.200.206.3
sctp_darn: error setting peer_primary: Operation not permitted.
10.200.207.3:30001-10.200.207.5:30000 Interactive mode> 

[root@rhel6-5 ~]# cat /proc/net/sctp/assocs 
 ASSOC     SOCK   STY SST ST HBKT ASSOC-ID TX_QUEUE RX_QUEUE UID INODE LPORT RPORT LADDRS <-> RADDRS HBINT INS OUTS MAXRT T1X T2X RTXC
ffff882025f9b000 ffff882022b729c0 0   7   4  17477   10        0        0       0 15310549 30001 30000  10.200.207.3 10.200.206.3 <-> 10.200.207.5 *10.200.206.5       30000    10    10   10    0    0        0 
root@blr03> 

1. Need a solution for using the "peer_primary"
2. Is the following option supported in 6.5?

SCTP_SET_PEER_PRIMARY_ADDR
   Requests that the peer mark the enclosed address as the association primary. The enclosed address must be one of the association's locally bound addresses.
   The  structure  sctp_setpeerprim  defined in /usr/include/netinet/sctp.h is used to make a set peer  primary request.