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From: Andrew Schulman <schulman DOT andrew AT epa DOT gov>
Subject: Re: socat with IP6 support?
Date: Fri, 09 May 2014 06:01:54 -0400
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> > To copy file1 to file2 on the localhost, run:
> > 
> > 	socat tcp6-listen:7777 file2
> > 
> > to set up a listener, and:
> > 
> > 	socat tcp6:[::1]:7777 file1
> > 
> > to connect to the listener and transfer the file.
> > 
> > If you have two hosts, you could try the same, running the first command
> > on the server, and the second command substituting the ipv6 address of
> > the server in place of ::1.
> 
> Testing this on 64 bit, with socat 1.7.2.4, and a Linux peer in both
> directions works fine.
> 
> Do you need a test of the 2.0 test version as well?

Yes please, since 2.0 is where I had to apply a patch to remove the use
of IPV6_DSTOPTS.  I do have an ipv6 host here that I tested it on, but
it would be good to have another test.


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