[Bug-wget] IPv6 EPSV behind a NAT64.

[scott . wget]

Hi,

My ISP provides a native IPv6 connection and also some NAT64 servers, which 
means that IPv6 only machines can still talk to IPv4 machines, however, 
using wget to download a file from an ftp site, wget detects that it is in 
IPv6 mode and sends an "EPSV 2" command.  The other end is IPv4 and issues 
"522 Bad Protocol", and the wget fails.  Not sure what the fix for this is, 
as a work around / temporary fix I have patched wget to try EPSV 2 and if 
that fails it tries EPSV 1.

Not sure this is a real bug given the setup, I guess you could argue that 
the NAT64 servers need to be more intelligent, however, I thought I'd 
report this to the list.

Regards,

Scott.