Date: Wed, 12 Sep 2007 23:28:34 -0500 From: "sazzadur rahman" <rahman.sazzadur@gmail.com> To: freebsd-net@freebsd.org Subject: A query regarding dynamic address configuration in SCTP Message-ID: <82bdb5ec0709122128r2d789050j7926109a84ec2033@mail.gmail.com>
next in thread | raw e-mail | index | archive | help
Hello,
I am trying to test a dynamic address configuration scenario between a sctp
server and a sctp client.
The scenario is like:
sctp_server(129.15.78.125)
sctp_client(129.15.78.114)
1.
<------------------------------------------------------------------------
connect
accept
----------------------------------------------------------------------->
2.
<--------------------------------------------------------------------- data
sack
----------------------------------------------------------------------->
sctp_server
creates an ipalias
of 129.15.78.126
3. addip(129.15.78.126
)-------------------------------------------------------->
<-------------------------------------------------------------------------asconf_ack
4. setpeerprimary(129.15.78.126)------------------------------------------->
<-------------------------------------------------------------------------asconf_ack
5.
<------------------------------------------------------------------------
data (still it sends data to peers
129.15.78.125 instead of 129.15.78.126)
I was expecting that in step 5, sctp_client would send data to sctp_server
in 129.15.78.126 IP address
which has been set primary by peer. But it still sends data to the old ip
address 129.15.78.125.
I found add ip and setpeerprimary operations were successful as sctp_server
gets successful asconf_ack after each
operations. I also found that sctp_client gets SCTP_PEER_ADDR_CHANGE event
with states SCTP_ADDR_ADDED and SCTP_ADDR_CONFIRMED after addip operation
by sctp_server and SCTP_ADDR_MADE_PRIM state after set_peer_primary_address
operation by sctp_server. Hence, I guess every operations worked perfect.
So, is my expectation wrong in this scenario? What else should I do to make
sctp_client send data to 129.15.78.126 ip address instead of
129.15.78.125ip address?
I would appriciate any help in this regard.
Best Regards,
Sazzadur Rahman,
Graduate Student,
School of computer science,
University of Oklahoma,
Norman, USA
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?82bdb5ec0709122128r2d789050j7926109a84ec2033>