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Originally posted at MetaCubeX/meta-rules-dat#98, copying to here,


Hi, according to section 3 of IETF RFC 5735 and RFC 1122 3.2.1.3 (a), addresses in 0.0.0.0/8,

MUST NOT be sent, except as a source address as part of an initialization procedure by which the host learns ... IP address.

And according to RFC 4291 2.5.2, the ::,

must not be used as the destination address of IPv6 packets or in IPv6 Routing headers.

No client in a normal case would even try to request such addresses.

In the real world, the IPv4 address 0.0.0.0 and IPv6 address :: are used by ISPs and enterprise networks to block access to a specific domain on the DNS level. And in most practices, the private ruleset is set to direct connection, which would cause these blocked sites to be proxied in the end, went direct and failed.

Thus, they shall be removed for a better user experience.

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