Re: SCTP API draft (was Re: New "IP Version 6 Addressing Architecture" draft)

[itojun]

>Ipv6 tcp layer and ipv4 tcp layer are shared.
>You cannot bind a ipv4 socket to a port already bound to ipv6 socket.
>You cannot bind a ipv6 socket to a port already bound to ipv4 socket.
>
>If you want to provide a service to ipv6 and ipv4 client through single 
>local port, you must create an ipv6 scoket and bind to that port;
>ipv4 clients are serviced by ipv6 scoket through ipv4-mapped addresses.

        just a comment: the following items are completely separate.
        you can get any behavior you want, with any code structure.
        the first 3 line in the above does not match up.

        - whether tcp layer code is shared between ipv4/v6 or not
        - whether pcb layer code is shared between AF_INET/INET6 or not
        - whether you allow bind(2) to the same port, while counterpart is
          already done that
        - whether you support RFC2553-inbound or not on AF_INET6 socket
        - whether you support RFC2553-outbound or not on AF_INET6 socket

itojun
--------------------------------------------------------------------
IETF IPng Working Group Mailing List
IPng Home Page:                      http://playground.sun.com/ipng
FTP archive:                      ftp://playground.sun.com/pub/ipng
Direct all administrative requests to [EMAIL PROTECTED]
--------------------------------------------------------------------