Hmm, I see, it's http://sources.redhat.com/bugzilla/show_bug.cgi?id=4980 . Ulrich dislikes to give justifications for his changes, so there we are. I think I'll just revert this unjustified remapping of ::1 to 127.0.0.1, and we're done. The above bug also quotes rfc2553, meanwhile superseeded by rfc3493. Both RFC state that: "Note: The IPv6 unspecified address ("::") and the IPv6 loopback address ("::1") are not IPv4-compatible addresses." If understand it correctly
https://bugzilla.novell.com/show_bug.cgi?id=684534
https://bugzilla.novell.com/show_bug.cgi?id=684534#c15
--- Comment #15 from Ralf Haferkamp