edns配置不生效

[giveup]

rust版（运行在本地）

关闭edns

dig @192.168.31.205 -p 1153 www.amd.com

; <<>> DiG 9.10.6 <<>> @192.168.31.205 -p 1153 www.amd.com
; (1 server found)
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 58607
;; flags: qr rd ra; QUERY: 1, ANSWER: 4, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION:
;www.amd.com.			IN	A

;; ANSWER SECTION:
www.amd.com.		600	IN	CNAME	dsa-www.amd.com.edgekey.net.
dsa-www.amd.com.edgekey.net. 600 IN	CNAME	dsa-www.amd.com.edgekey.net.globalredir.akadns.net.
dsa-www.amd.com.edgekey.net.globalredir.akadns.net. 600	IN CNAME e2897.ca2.s.tl88.net.
e2897.ca2.s.tl88.net.	600	IN	A	222.138.4.192

;; Query time: 1497 msec
;; SERVER: 192.168.31.205#1153(192.168.31.205)
;; WHEN: Fri Jan 12 20:11:12 CST 2024
;; MSG SIZE  rcvd: 178

开启edns

dig @192.168.31.205 -p 1154 www.amd.com

; <<>> DiG 9.10.6 <<>> @192.168.31.205 -p 1154 www.amd.com
; (1 server found)
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 34126
;; flags: qr rd ra; QUERY: 1, ANSWER: 4, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION:
;www.amd.com.			IN	A

;; ANSWER SECTION:
dsa-www.amd.com.edgekey.net. 600 IN	CNAME	dsa-www.amd.com.edgekey.net.globalredir.akadns.net.
e2897.ca2.s.tl88.net.	600	IN	A	222.138.4.192
www.amd.com.		600	IN	CNAME	dsa-www.amd.com.edgekey.net.
dsa-www.amd.com.edgekey.net.globalredir.akadns.net. 600	IN CNAME e2897.ca2.s.tl88.net.

;; Query time: 70 msec
;; SERVER: 192.168.31.205#1154(192.168.31.205)
;; WHEN: Fri Jan 12 20:11:36 CST 2024
;; MSG SIZE  rcvd: 178

无论开启还是关闭，返回的都是国内的CDN。

c版(运行在OpenWrt上)
关闭edns

HHH@HHHs-MBP ~ % dig @192.168.31.1 -p 1153 www.amd.com

; <<>> DiG 9.10.6 <<>> @192.168.31.1 -p 1153 www.amd.com
; (1 server found)
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 10431
;; flags: qr rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION:
;www.amd.com.			IN	A

;; ANSWER SECTION:
www.amd.com.		600	IN	CNAME	e2897.ca2.s.tl88.net.
e2897.ca2.s.tl88.net.	600	IN	A	222.138.4.192

;; Query time: 72 msec
;; SERVER: 192.168.31.1#1153(192.168.31.1)
;; WHEN: Fri Jan 12 20:13:17 CST 2024
;; MSG SIZE  rcvd: 79

开启edns

HHH@HHHs-MBP ~ % dig @192.168.31.1 -p 1154 www.amd.com

; <<>> DiG 9.10.6 <<>> @192.168.31.1 -p 1154 www.amd.com
; (1 server found)
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 51792
;; flags: qr rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION:
;www.amd.com.			IN	A

;; ANSWER SECTION:
www.amd.com.		600	IN	CNAME	e2897.b.akamaiedge.net.
e2897.b.akamaiedge.net.	600	IN	A	23.48.8.115

;; Query time: 1096 msec
;; SERVER: 192.168.31.1#1154(192.168.31.1)
;; WHEN: Fri Jan 12 20:12:38 CST 2024
;; MSG SIZE  rcvd: 81

可以看到开启edns后返回的CDN是akamaiedge。

部分配置文件

bind 127.0.0.1:1153@en0 -group domestic
bind 127.0.0.1:1154@en0  -no-speed-check -no-dualstack-selection -force-aaaa-soa -group oversea
server-tls 223.5.5.5  -no-check-certificate -group domestic
server-tls 223.6.6.6  -no-check-certificate -group domestic
server-tls 223.5.5.5  -no-check-certificate -group oversea -subnet 172.67.141.83
server-tls 223.6.6.6  -no-check-certificate -group oversea -subnet 172.67.141.83

已经确定阿里dns支持edns。

[mokeyish]

应该是支持的，这有单元测试
https://github.com/mokeyish/smartdns-rs/blob/main/src/dns_mw_ns.rs#L476

[giveup]

是否为配置错误？因为rust版没有完整的配置文件说明。所以edns是按照c版的去配置。
rust版启动时没有错误提示。