>There seems to be wide disagreement about what is the v6 loopback >address: some of these addresses exist on some v6 systems but not >others, or so we were told. If there is a v6 loopback address that is >universally deployed (as 127/8 is for v4), we can add it, although it >won't actually make this more deployable.
RFC 4291 says there is one v6 loopback address at ::1. What other addresses do people think are loopbacks? I suppose you could use link local addresses on a loopback pseudo-interface, to get roughly the same effect but that's not really the same thing. One concrete advantage of IPv4 over IPv6 in this context is that any address in 127/8 is a loopback address so if there's already something listening on 127.0.0.1 like the local DNS cache, you can put your root mirror on some other address like 127.0.1.0. In v6 if your cache is listening on ::1, you're stuck using a kludge. R's, John _______________________________________________ DNSOP mailing list [email protected] https://www.ietf.org/mailman/listinfo/dnsop
