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Thread-Topic: [EXTERNAL] Re: Cygwin/Win32 utility function to convert "raw" IPv6 address string into *.ipv6-literal.net string ? 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charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-MS-Exchange-AntiSpam-ExternalHop-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-ExternalHop-MessageData-0: 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 X-OriginatorOrg: ncbi.nlm.nih.gov X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: DM8PR09MB7095.namprd09.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: 625c7e57-6629-49dc-e5d9-08dbc04c52ad X-MS-Exchange-CrossTenant-originalarrivaltime: 28 Sep 2023 17:57:03.9781 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 14b77578-9773-42d5-8507-251ca2dc2b06 X-MS-Exchange-Transport-CrossTenantHeadersStamped: SA1PR09MB11324 X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00,DKIM_SIGNED,DKIM_VALID,DKIM_VALID_EF,SPF_PASS,TXREP,T_SPF_HELO_PERMERROR autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org List-Id: > What do you think that output is - the PTR is resolved to "localhost." You obviously did not get the point that I was making. Using ip6.arpa *is*= the standard way to get around with "DNS-like" IPv6 addresses, as it would be "understoo= d". Using the "ipv6-literal.net" domain is not portable and would result in NXDOMAIN = anywhere but Windows (where the resolver seems to intercept and convert them interna= lly). Anton Lavrentiev Contractor NIH/NLM/NCBI