>> >> Option 1: >> >> +---------------+ >> |BIH(FTP sever) |----------NAT64-------FTP Client >> +---------------+ >> >> >> Option 2: >> >> +---------------+ >> |BIH(FTP sever) |--------------FTP Client >> +---------------+ >> >> In the case of Option 1, it can't work since NAT64 couldn't support >> IPv4 initiated session > > I agree it would fail with a passive-mode transfer. But it should > work with an active-mode transfer. >
In an active-mode transfer, IPv4 client needs initiate the TCP connection to a port on the FTP sever in advance. Afterwards, FTP server connects back to the client. I'm not sure how could NAT64 support the first step (i.e. IPv4 initiated TCP connection)? Many thanks Gang _______________________________________________ Ietf mailing list Ietf@ietf.org https://www.ietf.org/mailman/listinfo/ietf
