On Wed, 18 Jun 2003, Chris Jones wrote:

> gamera# netstat -a | grep imap
> tcp      0      0  gamera.imap        legolas.59015          ESTABLISHED
> tcp      0      0  *.imap             *.*                    LISTEN
>
> legolas$ netstat -a | grep imap
> tcp6     0      0  legolas.59015      gamera.imap            ESTABLISHED
>
> What's going on here?  Even though I have no IPv6 DNS entries, legolas
> is using IPv6.  Is the 4-in-6 address translation automatic, then?

The application on legolas could be using an IPv4-mapped address,
which looks like IPv6 to the application, while using plain old IPv4
transport. When you look at the numeric address, with "netstat -anf
inet6", does it start with "::ffff"?

Frederick