
wayne at schlitt
Nov 28, 2006, 11:39 AM
Views: 3064
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Re: New poll on the IP4 mapped IP6 connection controversy
[In reply to]
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In <x4k61ffn9n.fsf [at] footbone> wayne <wayne [at] schlitt> writes: > What should happen when you get an SPF check using example.com and > 72.81.252.18: > > example.com TXT "v=spf1 ip6:::FFFF:72.81.252.18 -all" > > > 1) The SPF result is well defined and the result is Fail. An ip6: > mechanism that lists an IPv4-mapped IPv6 address is effectively a > no-op and will never be matched. My understanding is that this has always been the correct answer. > Next, what should happen when you get an SPF check using example.org and > 72.81.252.18: > > example.org TXT "v=spf1 a -all" > AAAA ::FFFF:72.81.252.18 > > 1) The SPF result is well defined and the result is Fail. An AAAA > record that lists an IPv4-mapped IPv6 address is effectively a > no-op and will never be matched. My understanding is that this has always been the correct answer. -wayne ------- To unsubscribe, change your address, or temporarily deactivate your subscription, please go to http://v2.listbox.com/member/?list_id=1007
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