[DNSOP] Corner-case in DNS authority guidance impacting IPv6-o nly resolvers
Erik Nygren <[email protected]> Fri, 1 May 2026 13:46:49 -0400
| Newsgroups | gmane.ietf.dnsop,gmane.ietf.v6ops |
|---|---|
| Message-ID | <CAKC-DJh95eH-FB6vLW0h9wDwOLkSy5WDWKOO7pWLdn-5_kOySg@mail.gmail.com> |
SW4gY2hhc2luZyBkb3duIHNvbWUgcHJvYmxlbXMgYmV0d2VlbiBzb21lIElQdjYtb25seSBETlMg cmVzb2x2ZXJzIGFuZA0KRE5TIGF1dGhvcml0aWVzIHdoaWNoIG9ubHkgaGFkIEFBQUEgcmVjb3Jk cyBvbiBhIHN1YnNldCBvZiB0aGVpcg0KbmFtZXMsIFBoaWxpcHAgVGllc2VsIGlkZW50aWZpZWQg YW4gaW50ZXJlc3RpbmcgY29ybmVyLWNhc2Ugd2hpY2ggd2UNCnNob3VsZCBiZSBhd2FyZSBvZiAo YW5kIHBlcmhhcHMgZG9jdW1lbnQpLg0KDQpVbmZvcnR1bmF0ZWx5IGRyYWZ0LWlldGYtZG5zb3At MzkwMWJpcy0xNyBpcyBhbHJlYWR5IHBhc3NlZCBvZmYgZnJvbQ0KdGhlIElFU0cgZm9yIHB1Ymxp Y2F0aW9uIG9yIHdlJ2Qgd2FudCB0byBpbmNsdWRlIGl0IHRoZXJlLg0KDQpUaGUgaXNzdWUgaXMg d2hlbiBhIEROUyBhdXRob3JpdGllcyBoYXZlIE5TIHJlY29yZCBuYW1lcyB3aXRoIEENCnJlY29y ZHMgYnV0IG5vdCBBQUFBIHJlY29yZHMsIGFsdGhvdWdoIHRoZSByZXZlcnNlIGlzIGxpa2VseSBh bHNvDQp0cnVlLiAgRHVyaW5nIGEgRE5TIHJlc29sdXRpb24sIHNvbWUgcmVzb2x2ZXJzIChzcGVj aWZpY2FsbHkgVW5ib3VuZA0KYnV0IHRoZXJlIG1heSBiZSBvdGhlcnMpIG1heSB0YWtlIGEgbWlz cyBvbiBhdXRob3JpdGllcy9nbHVlIGFuZCBuZWVkDQp0byByZXNvbHZlIHRoZSBOUyByZWNvcmQg bmFtZXMuICBXaGVuIHRob3NlIHJlc29sdXRpb25zIGZhaWwgKGR1ZSB0bw0KTlhET01BSU4gYnV0 IGFsc28gZHVlIHRvIE5PREFUQSkgdGhleSBpbmNyZWFzZSBhIGNvdW50ZXIsIGFuZCB3aGVuDQp0 aGlzIGNyb3NzZXMgYSB0aHJlc2hvbGQgdGhleSBmYWlsIHRoZSByZXNvbHV0aW9uLiAgSW4gVW5i b3VuZCdzIGNhc2UNCnRoaXMgbGltaXQgaXMgZHVlIHRvIFVuYm91bmQncyBkZWZlbnNlcyBhZ2Fp bnN0IGdsdWUgaHVudGluZyBpbg0KcmVzcG9uc2UgdG8gQ1ZFLTIwMjAtMTI2NjIuDQoNCldoZW4g dGhlIHJlc29sdmVyIG5lZWRzIHRvIGh1bnQgZm9yIGFuIGF1dGhvcml0eSBieSByZXNvbHZpbmcg dGhlDQpBL0FBQUEgcmVjb3JkcyBmb3IgTlMgcmVjb3JkcywgaXQgaXMgZW50aXJlbHkgcmVhc29u YWJsZSBmb3IgaXQgdG8NCmhhdmUgc29tZSB0b3RhbCBkZWZlbnNlcyBhZ2FpbnN0IGEgbGFyZ2Ug cGVyY2VudGFnZSBvZiB0aGVtIHJldHVybmluZw0KTlhET01BSU4vTk9EQVRBLiAgVGhpcyBsaWtl bHkgaGFzIHBlcmYgaXNzdWVzIGFzIHdlbGwgKGVnLCBpbiBoYXZpbmcNCnRvIGh1bnQgYXJvdW5k IGZvciBhIHJlYWNoYWJsZSBhZGRyZXNzIHJlY29yZCkuDQoNCkkgdGhpbmsgdGhlIGdlbmVyYWwg Z3VpZGFuY2UgaXMgcHJvYmFibHkgdGhhdCBhbGwgbmFtZXMgcG9pbnRlZCB0byBieQ0KTlMgcmVj b3JkcyBzaG91bGQgYmUgc3Ryb25nbHkgZW5jb3VyYWdlZCB0byBoYXZlIGJvdGggQSBhbmQgQUFB QQ0KcmVjb3Jkcy4gIFRoZSB0ZXh0IGluDQpodHRwczovL3d3dy5pZXRmLm9yZy9hcmNoaXZlL2lk L2RyYWZ0LWlldGYtZG5zb3AtMzkwMWJpcy0xNy5odG1sIGZvcjoNCg0KPiBUbyBtYWludGFpbiBu YW1lIHNwYWNlIGNvbnRpbnVpdHksIGV2ZXJ5IEROUyB6b25lIE1VU1QgYmUgc2VydmVkIGJ5IGF0 IGxlYXN0IHR3byBhdXRob3JpdGF0aXZlIEROUyBzZXJ2ZXJzIHByb3ZpZGluZyBzZXJ2aWNlcyB2 aWEgSVB2WzQ2XQ0KDQpEb2Vzbid0IGNvdmVyIHRoaXMgY29ybmVyLWNhc2Ugd2hpY2ggaGFwcGVu cyB3aGVuIHRvbyBtYW55DQphdXRob3JpdGF0aXZlIEROUyBzZXJ2ZXJzIGFyZSBjb25maWd1cmVk IGluIGRlbGVnYXRpb25zIHdoaWNoIGxhY2sNCmVpdGhlciBJUHY0IG9yIElQdjYuDQoNCkZvciBl eGFtcGxlOg0KDQp3d3cuZXhhbXBsZS5jb20gQ05BTUUgd3d3LWV4YW1wbGUtY29tLmNkbi5leGFt cGxlLg0Kd3d3LWV4YW1wbGUtY29tLmNkbi5leGFtcGxlLiBDTkFNRSBhMTM0My5zaGFyZDUuY2Ru LmV4YW1wbGUuDQp3aGVyZSBjZG4uZXhhbXBsZS4gZGVsZWdhdGVzIHRvIHNoYXJkNS5jZG4uZXhh bXBsZS4NCg0KSW4gdGhpcywgVW5ib3VuZCdzIGxpbWl0IG9mIDIqTUFYX1RBUkdFVF9OWCAoPT0g MTApIGlzIGN1bXVsYXRpdmUuDQpTbyBpZjoNCiogZXhhbXBsZS5jb20gaGFzIDIgb2YgNSBuYW1l cyBoYXZpbmcgbm8gQUFBQSwNCiogY2RuLmV4YW1wbGUuIGhhZCA1IG9mIDcgbmFtZXMgaGF2aW5n IG5vIEFBQUENCiogc2hhcmQ1LmNkbi5leGFtcGxlLiBoYWQgNSBvZiA3IG5hbWVzIGhhdmluZyBu byBBQUFBDQoNClRoZW4gc29tZSByZXNvbHV0aW9uIHBhdGhzIHdpbGwgdHJ5IHRvIHJlc29sdmUg MTIgYXV0aG9yaXR5IG5hbWVzIGFuZCBnZXQgTk9EQVRBDQphbmQgdGhlbiB3aWxsIGJhaWwgb3V0 IGR1ZSB0byB0aGF0IGJlaW5nIG92ZXIgdGhlIHNhZmV0eSBsaW1pdC4NClNvbWV0aW1lcyB0aGlz IHdpbGwgd29yayBpZiBpdCBmaW5kcw0KdGhlIHJpZ2h0IG5hbWVzIGluIHRoZSByaWdodCBvcmRl ciwgYnV0IG90aGVyIHRpbWVzIGl0IHdpbGwgZmFpbC4NClRoaXMgaXMgZGVzcGl0ZSBhbGwNCm9m IHRoZSBuYW1lcyBtZWV0aW5nIHRoZSAiZXZlcnkgRE5TIHpvbmUgTVVTVCBiZSBzZXJ2ZWQgYnkg YXQgbGVhc3QNCnR3byBhdXRob3JpdGF0aXZlIEROUyBzZXJ2ZXJzIHByb3ZpZGluZyBzZXJ2aWNl cyB2aWEgSVB2WzQ2XSINCmNyaXRlcmlhLg0KDQooVGhpcyBvZiBjb3Vyc2UgYWxzbyBoYXMgaW1w YWN0cyBzaW5jZSB0aGUgcmVzb2x2ZXIgbmVlZHMgdG8gaHVudCBmb3INCnRoaW5ncyB0aGF0IHJl c29sdmUuKQ0KDQpJJ20gZ3Vlc3NpbmcgdGhpcyBpcyB0b28gbGF0ZSBmb3IgZHJhZnQtaWV0Zi1k bnNvcC0zOTAxYmlzIGFuZCB0b28NCnN1YnN0YW50aXZlIGZvciBhbiBlcnJhdGEuDQpJIHRoaW5r IHRoZSByZWFzb25zIGZvciBVbmJvdW5kIHRvIGRvIHRoaW5ncyB0aGlzIHdheSBhcmUgbGVnaXRp bWF0ZQ0KKHNvIG5vdCBhIGJ1ZyBvbiB0aGVpciAgc2lkZSkuDQpBIHJlY3VzaXZlIHVzaW5nIE5B VDY0IHdvdWxkbid0IGhhdmUgdGhpcyBwcm9ibGVtLCBidXQgSSB0aGluayB3ZSBkbw0Kd2FudCB0 byBhaW0gZm9yIGEgd29ybGQNCndoZXJlIHBlb3BsZSBjYW4gcmVhc29uYWJseSBkZXBsb3kgdHJ1 ZSBJUHY2LW9ubHkgcmVzb2x2ZXJzLg0KDQpCZXN0LA0KDQogICAgRXJpaw0KDQpfX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpETlNPUCBtYWlsaW5nIGxpc3Qg LS0gZG5zb3BAaWV0Zi5vcmcKVG8gdW5zdWJzY3JpYmUgc2VuZCBhbiBlbWFpbCB0byBkbnNvcC1s ZWF2ZUBpZXRmLm9yZwo=