sctp: ASCONF-ACK with Unresolvable Address should be sent
sctp: ASCONF-ACK with Unresolvable Address should be sent

RFC 5061:
    This is an opaque integer assigned by the sender to identify each
    request parameter.  The receiver of the ASCONF Chunk will copy this
    32-bit value into the ASCONF Response Correlation ID field of the
    ASCONF-ACK response parameter.  The sender of the ASCONF can use this
    same value in the ASCONF-ACK to find which request the response is
    for.  Note that the receiver MUST NOT change this 32-bit value.

    Address Parameter: TLV

    This field contains an IPv4 or IPv6 address parameter, as described
    in Section 3.3.2.1 of [RFC4960].

ASCONF chunk with Error Cause Indication Parameter (Unresolvable Address)
should be sent if the Delete IP Address is not part of the association.

  Endpoint A                           Endpoint B
  (ESTABLISHED)                        (ESTABLISHED)

  ASCONF        ----------------->
  (Delete IP Address)
                <-----------------      ASCONF-ACK
                                        (Unresolvable Address)

Signed-off-by: Xin Long <ed9bd6f22d2a1e0b1507d3ddc300dc248265d19a@gmail.com>
Acked-by: Vlad Yasevich <df4bbba3da7ae0371dc686d07d0ceb66ffa78730@gmail.com>
Acked-by: Marcelo Ricardo Leitner <7fc7fc98bf391a9b9f95a773bac29e7d60cc65b5@gmail.com>
Signed-off-by: David S. Miller <fe08d3c717adf2ae63592e4c9aec6e3e404d8e3e@davemloft.net>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs