访问 V2EX 经常出现失败，多刷几下就正常了。忘了开启了 ipv6

忘了 Chrome 里截图了，好像是 CONNECT_RESET 之类的错误。

nslookup 的结果

nslookup www.v2ex.com
非权威应答:
名称: www.v2ex.com
Addresses: 2606:4700:10::ac43:3bc
2606:4700:10::6814:ada
2606:4700:10::6814:9da
104.20.10.218
172.67.3.188
104.20.9.218

ping 也正常

正在 Ping www.v2ex.com [2606:4700:10::6814:9da] 具有 32 字节的数据:
来自 2606:4700:10::6814:9da 的回复: 时间=171ms
来自 2606:4700:10::6814:9da 的回复: 时间=173ms
来自 2606:4700:10::6814:9da 的回复: 时间=167ms
来自 2606:4700:10::6814:9da 的回复: 时间=164ms

curl 不行

curl -v https://www.v2ex.com/
* Trying 2606:4700:10::6814:9da:443...
* Connected to www.v2ex.com (2606:4700:10::6814:9da) port 443 (#0)
* schannel: disabled automatic use of client certificate
* schannel: ALPN, offering http/1.1
* schannel: failed to receive handshake, SSL/TLS connection failed
* Closing connection 0
curl: (35) schannel: failed to receive handshake, SSL/TLS connection failed


浏览器 F5 多按几下后，能访问了，然后再 curl：


curl -v https://www.v2ex.com/
* Trying 2606:4700:10::6814:9da:443...
* Trying 104.20.10.218:443...
* Connected to www.v2ex.com (104.20.10.218) port 443 (#0)
* schannel: disabled automatic use of client certificate
* schannel: ALPN, offering http/1.1
* schannel: ALPN, server accepted to use http/1.1
> GET / HTTP/1.1
> Host: www.v2ex.com
> User-Agent: curl/7.79.1
> Accept: */*
>
* schannel: failed to decrypt data, need more data
* Mark bundle as not supporting multiuse
< HTTP/1.1 200 OK
< Date: Sun, 12 Jun 2022 02:13:48 GMT
< Content-Type: text/html; charset=UTF-8
< Transfer-Encoding: chunked
< Connection: keep-alive
< vary: Accept-Encoding
……………………后面省略



意思是 ipv6 访问有问题？ ipv4 正常？