Ubuntu系统无法通过SSH连接Bitbucket的问题求助

无法通过Git/SSH连接Bitbucket主机，调试发现SSH执行set_sock_tos后卡住。

已执行的调试操作 #

• 执行ssh -vvv -T git@bitbucket.org：连接bitbucket.org解析出的IP地址时超时。
• 执行ssh -o IPQoS=none -vvv -T git@bitbucket.org：结果一致。

补充说明：可以正常连接github.com，请问我遗漏了什么配置？

调试日志 #

OpenSSH_8.9p1 Ubuntu-3ubuntu0.1, OpenSSL 3.0.2 15 Mar 2022
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: /etc/ssh/ssh_config line 19: include /etc/ssh/ssh_config.d/*.conf matched no files
debug1: /etc/ssh/ssh_config line 21: Applying options for *
debug3: expanded UserKnownHostsFile '~/.ssh/known_hosts' -> '/home/gvaish/.ssh/known_hosts'
debug3: expanded UserKnownHostsFile '~/.ssh/known_hosts2' -> '/home/gvaish/.ssh/known_hosts2'
debug2: resolving "bitbucket.org" port 22
debug3: resolve_host: lookup bitbucket.org:22
debug3: ssh_connect_direct: entering
debug1: Connecting to bitbucket.org [2406:da00:ff00::22c0:3470] port 22.
debug3: set_sock_tos: set socket 3 IPV6_TCLASS 0x10
debug1: connect to address 2406:da00:ff00::22c0:3470 port 22: Connection timed out
debug1: Connecting to bitbucket.org [2406:da00:ff00::3403:4be7] port 22.
debug3: set_sock_tos: set socket 3 IPV6_TCLASS 0x10

netstat连接状态 #

tcp6   0   1 2601:641:4001:fb2:34898 2406:da00:ff00::3403:22 SYN_SENT

内容的提问来源于stack exchange，提问作者gvaish