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When using SCTP, after I have called bind() (but not bindx() / SCTP_SOCKOPT_BINDX_ADD) and after I have called connect(), can I then call bind() or use SCTP_SOCKOPT_BINDX_ADD?
E.g. -after- connecting, rather than after binding and before connecting, can I add additional local IP addresses (for multi-homing).
RFC said:
Adding and removing addresses from a connected association is an
optional functionality. Implementations that do not support this
functionality should return -1 and set errno to EOPNOTSUPP.
But in linux, you can add/rem additional local ip addr after
established connection.