On Mon, Nov 20, 2023 at 7:13 PM Backwoods BC via Cygwin wrote: > > On Thu, Nov 16, 2023 at 12:41 PM Brian Inglis via Cygwin wrote: > > The whole IP v4 internet is available as a compatibility subnet > > ::ffff:0:a.b.c.d > > on IP v6, so there is no excuse for not supporting interconnection, as it > > will > > be required until the last backbone routers drop IP v4 support. > > Just a small correction for the mail archives as this appears solved. > The correct IPV6 address for the IPV4 address range is > ::ffff:a.b.c.d (no '0')
If you're going for correcting the record, let's make it correct. ::ffff:a.b.c.d is not a solution for IPv6 => IPv4 interconnection over the Internet. from: https://www.rfc-editor.org/rfc/rfc5156 2.2. IPv4-Mapped Addresses ::FFFF:0:0/96 are the IPv4-mapped addresses [RFC4291]. Addresses within this block should not appear on the public Internet. Regards, Lee -- Problem reports: https://cygwin.com/problems.html FAQ: https://cygwin.com/faq/ Documentation: https://cygwin.com/docs.html Unsubscribe info: https://cygwin.com/ml/#unsubscribe-simple
