https://bugzilla.novell.com/show_bug.cgi?id=822888 https://bugzilla.novell.com/show_bug.cgi?id=822888#c0 Summary: IPv4-mapped IPv6 addresses do not work Classification: openSUSE Product: openSUSE 12.3 Version: Final Platform: x86-64 OS/Version: openSUSE 12.3 Status: NEW Severity: Normal Priority: P5 - None Component: Network AssignedTo: bnc-team-screening@forge.provo.novell.com ReportedBy: james.knott@rogers.com QAContact: qa-bugs@suse.de Found By: --- Blocker: --- User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:20.0) Gecko/20100101 Firefox/20.0 SeaMonkey/2.17 Lightning/2.2b1 IPv4-mapped IPv6 addresses is a method of expressing an IPv4 address as an IPv6 address. For example, 172.16.1.10 would become ::ffff:172.16.1.10. As I recall, this worked in openSUSE when I tried it about 3 years ago, but it does not now. As an experiment, I also tried it in Window 7, where it does work. When I try it in openSUSE, Wireshark shows the computer sending the packet to the router, which returns an unreachable error. With Windows, the address is converted to IPv4 as expected. Here is the Wikipedia link on this: https://en.wikipedia.org/wiki/IPv6#IPv4-mapped_IPv6_addresses And the RFC: https://tools.ietf.org/html/rfc4291 2.5.5.2. IPv4-Mapped IPv6 Address Reproducible: Always Steps to Reproduce: 1.ping6 an address such as ::ffff:172.16.1.10 2.That address should be converted to 172.16.1.10 3.ping6 gets an echo Actual Results: Instead of converting to an IPv4 address, the IPv4 mapped IPv6 address is sent to the router, which returns an unreachable error. Expected Results: Mapped address should have been converted to IPv4 and pinged the destination. See also IPv6 Essentials 2nd edition by Silvia Hagen (O'Reilly), page 45. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.