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Hi,

Is not it using destination address that received (local
addresses) it in the logic of the association distinction of
SCTPLIB ?
Although it is testing with the following connection pattern it
has failed to the establishment of the SCTP association.

INIT
--------->
+----------+ Asc.1 +-----------+
| UA1 IP 1 | <--------> | IP 0 UA1|
| | Asc.2 | |
| UA2 IP 2 | <--------> | IP 0 UA2 |
+----------+ +-----------+
same port number same port number
UA1=UA2=4555 UA1=UA2=5555

Asc.1 Established (first)
Asc.2 Failed to establishment (second)


I think that it is described that it should identify the
association possibility, by judging the address of UA1 and UA2
(as destination or local address), the above connection pattern
in RFC 2960.

-- RFC 2960 ----------
3.1 SCTP Common Header Field Descriptions

Source Port Number: 16 bits (unsigned integer)

This is the SCTP sender's port number. It can be used by the
receiver in combination with the source IP address, the SCTP
destination port and possibly the destination IP address to
identify the association to which this packet belongs.
-----------------------

TIA,
Hideki

--
Hideki Kishida
<kishida AT secnet.co.jp>
(Japan)

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• [SCTP-Discussion] identification of association, Hideki Kishida, 05/29/2002
  • Re: [SCTP-Discussion] identification of association, Michael Tuexen, 05/31/2002

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