我内网自建的递归也是这样,很神奇,感觉可能 ecs 的问题
dig
ds.v6ns.jp2.test-ipv6.com @
8.8.4.4 +subnet=202.96.64.0 aaaa
; <<>> DiG 9.19.1-1+0~20220518.77+debian11~1.gbp659152-Debian <<>>
ds.v6ns.jp2.test-ipv6.com @
8.8.4.4 +subnet=202.96.64.0 aaaa
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: REFUSED, id: 26806
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 512
; EDE: 49152: (Provided ECS includes 32 bits, but no more than 24 are allowed.
https://developers.google.com/speed/public-dns/docs/ecs)
; CLIENT-SUBNET: 202.96.64.0/32/0
;; QUESTION SECTION:
;
ds.v6ns.jp2.test-ipv6.com. IN AAAA
;; Query time: 40 msec
;; SERVER: 8.8.4.4#53(8.8.4.4) (UDP)
;; WHEN: Sat Jun 11 18:25:07 CST 2022
;; MSG SIZE rcvd: 191
dig
ds.v6ns.jp2.test-ipv6.com @
8.8.4.4 +subnet=202.96.64.0/24 aaaa
; <<>> DiG 9.19.1-1+0~20220518.77+debian11~1.gbp659152-Debian <<>>
ds.v6ns.jp2.test-ipv6.com @
8.8.4.4 +subnet=202.96.64.0/24 aaaa
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 60281
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 512
; CLIENT-SUBNET: 202.96.64.0/24/0
;; QUESTION SECTION:
;
ds.v6ns.jp2.test-ipv6.com. IN AAAA
;; ANSWER SECTION:
ds.v6ns.jp2.test-ipv6.com. 131 IN AAAA 2400:8902:e001:24::1
;; Query time: 50 msec
;; SERVER: 8.8.4.4#53(8.8.4.4) (UDP)
;; WHEN: Sat Jun 11 18:24:49 CST 2022
;; MSG SIZE rcvd: 93