Am Montag, 30. Januar 2023, 23:12:53 CET schrieb Mark Andrews: > Do you want a correctly operating DNS64 server or do you want to filter > all A records? They are mutually exclusive requirements. Please read > RFC 6147 to understand why they are mutually exclusive.
That's simply not true. RFC 6147 is about synthesizing AAAA records based on A records. It says nothing about blocking A records afterwards. > You seem to have this strange notion that to run an IPv6-only node or > network that you need to filter out A records. It isn't more strange than filtering AAAA records in old IPv4 only networks. That filter is ironically implemented by the isc - despite there is no serious RFC for that. The purpose of the A record filter is to correct the behavior of apps which don't respect IPv6 RFCs regarding the preference of IPv6 over IPv4. > Could you tell me who or > what told you this was required? Thank you for the personal attack within the first contact. I am old (enough) - I can speak for myself. I am an experienced user of different IPv6 only networks. e.g daily at eduroam-IPv6only, a big Wifi network administrated by the Leibniz Supercomputinger Centre in Munich, daily at the IPv6-only mobile network(4g/5g) by Deutsche Telekom, once a year at the RIPE conference WiFi I am the admin of my home/test lab with: tayga, jool, unbound (filters a, does dns64) , dnsmasq (can filter a, but can't do dns64 ) I know that clat is a solution for *some* very old apps, usually on smartphones and recently also on macs. Nevertheless Windows doesn't use clat in wireless/wired LANs. I want to get rid of clat - aka 464xlat. ( clat was not invented for eternity) Even linux has no default clat installation on many distributions. My experience until now: the a record filter doesn't break anything, but it make some apps working without clat - so at least some windows and linux apps. Now I am testing the usefulness of bind. In the recent state it isn't useful. Regards Thomas Schäfer -- Visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list ISC funds the development of this software with paid support subscriptions. Contact us at https://www.isc.org/contact/ for more information. bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
