NAME

  InitWithOneAddr.seq - INIT chunk is received with one address parameter

PURPOSE

  To check that if there is one transport address is received in INIT message 
  then the IP address plus the IP address from where INIT comes combined with 
  the SCTP source port number is used as the destination transport address.

SYNOPSIS

  ./InitWithOneAddr.seq [-tooloption ...] -pkt ./InitWithOneAddr.def
    -tooloption : v6eval tool option
  See Also: ../common/STD_PKT_COMMON.def
            ../common/SCTP_COMMON.def

PRE-TEST CONDITION

  Association is not established between endpoint A and B. Arrange the
  data in endpoint A such that INIT message with one transport address
  is sent to endpoint B.

TEST PROCEDURE

  Endpoint A                           Endpoint B                ULP
  (CLOSED)                             (CLOSED)

  INIT          ----------------->
  (Transport Address = x)
                <-----------------      INIT-ACK

  COOKIE-ECHO   ----------------->

                <-----------------      COOKIE-ACK

  DATA          ----------------->
  (Transport Address = x)
                <-----------------      SACK

  TEST DESCRIPTION:

  1. Attempt to make an association from endpoint A to endpoint B. Send 
     INIT message containing one IPv4/IPv6 address. 
  2. Check A: INIT message is accepted.
  3. Check B: INIT-ACK is sent at the transport address from where INIT 
     message was received. 
  4. Check C: Other messages from endpoint B are sent at the IP address 
     received in INIT message.
  5. Check D: Send DATA the IP address in endpoint A. Check that 
     it is accepted and responded with SACK.

NOTE

  None

REFERENCE

  RFC 4960

  5.1.2.  Handle Address Parameters

    C) If there are only IPv4/IPv6 addresses present in the received INIT
       or INIT ACK chunk, the receiver MUST derive and record all the
       transport addresses from the received chunk AND the source IP
       address that sent the INIT or INIT ACK.  The transport addresses
       are derived by the combination of SCTP source port (from the
       common header) and the IP Address parameter(s) carried in the INIT
       or INIT ACK chunk and the source IP address of the IP datagram.
       The receiver should use only these transport addresses as
       destination transport addresses when sending subsequent packets to
       its peer.

    D) An INIT or INIT ACK chunk MUST be treated as belonging to an
       already established association (or one in the process of being
       established) if the use of any of the valid address parameters
       contained within the chunk would identify an existing TCB.