On Tue, Jul 01, 2008 at 05:40:35PM +0100, Tony Finch <dot@xxxxxxxx> wrote a message of 18 lines which said: > RFC 1123 section 2.1, especially the last sentence. Well, the last sentence will no longer be true if all-numeric TLDs are allocated but, before that, one finds: > The host SHOULD check the string syntactically for a dotted-decimal > number before looking it up in the Domain Name System. which seems to reply to David Conrad's question: if all the implementations are correct, 127.0.0.1 will always be an IP address, even if the TLD ".1" is allocated. _______________________________________________ Ietf@xxxxxxxx https://www.ietf.org/mailman/listinfo/ietf