223.5.5.5 119.29.29.29 DNS 后端服务器不支持 IPv6

跟随国际大环境趋势，在调试部署全栈 IPv6-Only 应用时，发现

• 4G/5G 网络也可以正常打开✔️


• 运营商光猫自带的 DNS 可以正常打开✔️


• 境外常用公共递归 DNS 也都正常打开✔️


• 阿里的 223.5.5.5 和 2400:3200::1❌


• 腾讯的 119.29.29.29 和 2402:4e00::❌

域名使用 IPv6-Only 权威 DNS 服务器，未配置 IPv4 权威 DNS 服务器

阿里的 DNS

C:\Users\pc>dig AAAA test.ip6.plus @223.5.5.5



; <<>> DiG 9.17.15 <<>> AAAA test.ip6.plus @223.5.5.5

;; global options: +cmd

;; Got answer:

;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 6837

;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 1



;; OPT PSEUDOSECTION:

; EDNS: version: 0, flags:; udp: 1232

;; QUESTION SECTION:

;test.ip6.plus.                 IN      AAAA



;; Query time: 15 msec

;; SERVER: 223.5.5.5#53(223.5.5.5) (UDP)

;; WHEN: Tue Jul 14 15:52:01 ;; MSG SIZE  rcvd: 42

C:\Users\pc>dig AAAA test.ip6.plus @2400:3200::1



; <<>> DiG 9.17.15 <<>> AAAA test.ip6.plus @2400:3200::1

;; global options: +cmd

;; Got answer:

;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 54043

;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 1



;; OPT PSEUDOSECTION:

; EDNS: version: 0, flags:; udp: 1232

;; QUESTION SECTION:

;test.ip6.plus.                 IN      AAAA



;; Query time: 171 msec

;; SERVER: 2400:3200::1#53(2400:3200::1) (UDP)

;; WHEN: Tue Jul 14 15:59:41 ;; MSG SIZE  rcvd: 42

腾讯的 DNS

C:\Users\pc>dig AAAA test.ip6.plus @119.29.29.29



; <<>> DiG 9.17.15 <<>> AAAA test.ip6.plus @119.29.29.29

;; global options: +cmd

;; Got answer:

;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 50201

;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 1



;; OPT PSEUDOSECTION:

; EDNS: version: 0, flags:; udp: 1232

; COOKIE: 8cf3d9bd947dc0fe (echoed)

;; QUESTION SECTION:

;test.ip6.plus.                 IN      AAAA



;; Query time: 803 msec

;; SERVER: 119.29.29.29#53(119.29.29.29) (UDP)

;; WHEN: Tue Jul 14 16:01:03 ;; MSG SIZE  rcvd: 54

C:\Users\pc>dig AAAA test.ip6.plus @2402:4e00::



; <<>> DiG 9.17.15 <<>> AAAA test.ip6.plus @2402:4e00::

;; global options: +cmd

;; Got answer:

;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 35102

;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 1



;; OPT PSEUDOSECTION:

; EDNS: version: 0, flags:; udp: 1232

; COOKIE: b5cca1a5fb63b8d6 (echoed)

;; QUESTION SECTION:

;test.ip6.plus.                 IN      AAAA



;; Query time: 794 msec

;; SERVER: 2402:4e00::#53(2402:4e00::) (UDP)

;; WHEN: Tue Jul 14 16:01:57 ;; MSG SIZE  rcvd: 54

运营商的 DNS

C:\Users\pc>dig AAAA test.ip6.plus



; <<>> DiG 9.17.15 <<>> AAAA test.ip6.plus

;; global options: +cmd

;; Got answer:

;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 33971

;; flags: qr rd ra; QUERY: 1, ANSWER: 4, AUTHORITY: 0, ADDITIONAL: 0



;; QUESTION SECTION:

;test.ip6.plus.                 IN      AAAA



;; ANSWER SECTION:

test.ip6.plus.          600     IN      CNAME   cdn6.ipv6-only.cn.

cdn6.ipv6-only.cn.      600     IN      CNAME   cdn6-cm.ipv6-only.cn.

cdn6-cm.ipv6-only.cn.   600     IN      AAAA    2409:8c28:7ce0:203::27ae:6129

cdn6-cm.ipv6-only.cn.   600     IN      AAAA    2409:8c20:5021:108::2496:8a29



;; Query time: 4 msec

;; SERVER: 211.140.13.188#53(211.140.13.188) (UDP)

;; WHEN: Tue Jul 14 16:05:18 ;; MSG SIZE  rcvd: 140

C:\Users\pc>dig AAAA test.ip6.plus



; <<>> DiG 9.17.15 <<>> AAAA test.ip6.plus

;; global options: +cmd

;; Got answer:

;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 31018

;; flags: qr rd ra; QUERY: 1, ANSWER: 4, AUTHORITY: 0, ADDITIONAL: 0



;; QUESTION SECTION:

;test.ip6.plus.                 IN      AAAA



;; ANSWER SECTION:

test.ip6.plus.          600     IN      CNAME   cdn6.ipv6-only.cn.

cdn6.ipv6-only.cn.      600     IN      CNAME   cdn6-cm.ipv6-only.cn.

cdn6-cm.ipv6-only.cn.   600     IN      AAAA    2409:8c28:7ce0:203::27ae:6129

cdn6-cm.ipv6-only.cn.   600     IN      AAAA    2409:8c20:5021:108::2496:8a29



;; Query time: 4 msec

;; SERVER: 2409:8028:2000::1111#53(2409:8028:2000::1111) (UDP)

;; WHEN: Tue Jul 14 16:11:41 ;; MSG SIZE  rcvd: 140