change sctp agent dest

[rubenjy]

there have two node, n1 and n2.
n1 have sctp agent 1  and sctp agent 2
n2 have sctp agent 3

agent 1 send data to agent 3
when some event active of agent 1 ,
i want to use agent 2 send data to agent 3.

i change dest address in agent 2, but agent 3 willn't receive the packet.
(i had change agent 2's estate to ESTABLISHED)
if i will not establish agent 2 and agent 3 connect
where is the code must modify, and how to modify