无法 push/pull 使用 IPv6 通过 SSH 访问 bitbucket

Question

什么时候可以push/pull到bitbucket：

从我的工作计算机通过 ssh 密钥 id_rsa_bitbucket_work
从我的笔记本电脑，但仅当通过 ssh 密钥登录到 VPN (Cisco AnyConnect) 时 id_rsa_bitbucket。我的 VPN 有一个静态 IP。
始终使用 https。

当我无法 push/pull 到 bitbucket 时：

在未连接 VPN 的任何时候从我的笔记本电脑，通过 ssh 密钥 ida_rsa_bitbucket。
在不使用 VPN 时从我的笔记本电脑连接到我的工作网络，即使我名义上在同一个网络上我也会使用 VPN。

我的 ~/.ssh/config 中的相应条目是：

Host bitbucket
     HostName bitbucket.org
     User git
     IdentityFile ~/.ssh/id_rsa_bitbucket

通过 SSH 连接到 github 存储库始终有效，无论 network/VPN 我正在经历什么。

我已经检查以确保：

我的 SSH 代理是运行并且加载了正确的密钥。
无论 VPN 设置如何，我的 SSH 代理都在分发相同的密钥。

未登录 VPN 时 ssh -Tv bitbucket 的输出是：

OpenSSH_6.9p1, LibreSSL 2.1.8
debug1: Reading configuration data /Users/fcarter/.ssh/config
debug1: /Users/fcarter/.ssh/config line 1: Applying options for bitbucket
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: /etc/ssh/ssh_config line 21: Applying options for *
debug1: /etc/ssh/ssh_config line 56: Applying options for *
debug1: Connecting to bitbucket.org [2401:1d80:1010::150] port 22.
debug1: Connection established.
debug1: identity file /Users/fcarter/.ssh/id_rsa_bitbucket type 1
debug1: key_load_public: No such file or directory
debug1: identity file /Users/fcarter/.ssh/id_rsa_bitbucket-cert type -1
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_6.9
debug1: Remote protocol version 2.0, remote software version conker_1.0.284-7b46313 app-127
debug1: no match: conker_1.0.284-7b46313 app-127
debug1: Authenticating to bitbucket.org:22 as 'git'
debug1: SSH2_MSG_KEXINIT sent
debug1: SSH2_MSG_KEXINIT received
debug1: kex: server->client aes128-ctr hmac-sha2-256 none
debug1: kex: client->server aes128-ctr hmac-sha2-256 none
debug1: expecting SSH2_MSG_KEX_ECDH_REPLY
debug1: Server host key: ssh-rsa SHA256:zzXQOXSRBEiUtuE8AikJYKwbHaxvSc0ojez9YXaGp1A
debug1: Host 'bitbucket.org' is known and matches the RSA host key.
debug1: Found key in /Users/fcarter/.ssh/known_hosts:12
debug1: SSH2_MSG_NEWKEYS sent
debug1: expecting SSH2_MSG_NEWKEYS
debug1: SSH2_MSG_NEWKEYS received
debug1: SSH2_MSG_SERVICE_REQUEST sent
debug1: SSH2_MSG_SERVICE_ACCEPT received
debug1: Authentications that can continue: publickey
debug1: Next authentication method: publickey
debug1: Offering RSA public key: /Users/fcarter/.ssh/id_rsa_bitbucket
debug1: Server accepts key: pkalg ssh-rsa blen 535
debug1: Authentication succeeded (publickey).
Authenticated to bitbucket.org ([2401:1d80:1010::150]:22).
debug1: channel 0: new [client-session]
debug1: Entering interactive session.
debug1: Sending environment.
debug1: Sending env LANG = en_US.UTF-8
debug1: channel 0: free: client-session, nchannels 1
Transferred: sent 4048, received 1776 bytes, in 10.1 seconds
Bytes per second: sent 401.8, received 176.3
debug1: Exit status -1

似乎可以连接和验证（通过 IPv6？），但退出时出现错误。

登录我的 VPN 时 ssh -Tv bitbucket 的输出是：

OpenSSH_6.9p1, LibreSSL 2.1.8
debug1: Reading configuration data /Users/fcarter/.ssh/config
debug1: /Users/fcarter/.ssh/config line 1: Applying options for bitbucket
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: /etc/ssh/ssh_config line 21: Applying options for *
debug1: /etc/ssh/ssh_config line 56: Applying options for *
debug1: Connecting to bitbucket.org [2401:1d80:1010::151] port 22.
debug1: connect to address 2401:1d80:1010::151 port 22: Permission denied
debug1: Connecting to bitbucket.org [104.192.143.3] port 22.
debug1: Connection established.
debug1: identity file /Users/fcarter/.ssh/id_rsa_bitbucket type 1
debug1: key_load_public: No such file or directory
debug1: identity file /Users/fcarter/.ssh/id_rsa_bitbucket-cert type -1
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_6.9
debug1: Remote protocol version 2.0, remote software version conker_1.0.284-7b46313 app-125
debug1: no match: conker_1.0.284-7b46313 app-125
debug1: Authenticating to bitbucket.org:22 as 'git'
debug1: SSH2_MSG_KEXINIT sent
debug1: SSH2_MSG_KEXINIT received
debug1: kex: server->client aes128-ctr hmac-sha2-256 none
debug1: kex: client->server aes128-ctr hmac-sha2-256 none
debug1: expecting SSH2_MSG_KEX_ECDH_REPLY
debug1: Server host key: ssh-rsa SHA256:zzXQOXSRBEiUtuE8AikJYKwbHaxvSc0ojez9YXaGp1A
debug1: Host 'bitbucket.org' is known and matches the RSA host key.
debug1: Found key in /Users/fcarter/.ssh/known_hosts:12
debug1: SSH2_MSG_NEWKEYS sent
debug1: expecting SSH2_MSG_NEWKEYS
debug1: SSH2_MSG_NEWKEYS received
debug1: SSH2_MSG_SERVICE_REQUEST sent
debug1: SSH2_MSG_SERVICE_ACCEPT received
debug1: Authentications that can continue: publickey
debug1: Next authentication method: publickey
debug1: Offering RSA public key: /Users/fcarter/.ssh/id_rsa_bitbucket
debug1: Server accepts key: pkalg ssh-rsa blen 535
debug1: Authentication succeeded (publickey).
Authenticated to bitbucket.org ([104.192.143.3]:22).
debug1: channel 0: new [client-session]
debug1: Entering interactive session.
debug1: Sending environment.
debug1: Sending env LANG = en_US.UTF-8
logged in as faustin315.

You can use git or hg to connect to Bitbucket. Shell access is disabled.
debug1: client_input_channel_req: channel 0 rtype exit-status reply 0
debug1: channel 0: free: client-session, nchannels 1
Transferred: sent 4048, received 1984 bytes, in 0.2 seconds
Bytes per second: sent 16284.6, received 7981.4
debug1: Exit status 0

似乎可以连接和验证（通过 IPv4？），一切正常。

更新： 在 bitbucket 的网站上找到 this issue 后，我尝试将 104.192.143.2 bitbucket.org 添加到我的 /etc/hosts 文件中。这没有解决问题。

Answer 1

在 Bitbucket 支持的大量帮助下更新：

经过更多研究，问题似乎出在我的路由器端 (Linksys E3200)，并且与 IPv6 有某种关联。我可以毫无问题地访问纯 IPv6 站点，并且使用 github 一切正常（这是因为 github 仅适用于 IPv4）。但是，SSH 需要过滤掉一些东西才能正常工作。如果我直接插入我的调制解调器并且运行 ssh -Tvv bitbucket 它会通过 IPv6 正确验证。

为了解决这个问题（当我购买新路由器时），我通过将 AddressFamily inet 添加到我的 ~/.ssh/config file 来强制与 bitbucket 的连接仅使用 IPv4（感谢： )。因此，bitbucket 的更新条目现在显示为：

Host bitbucket
     HostName bitbucket.org
     User git
     IdentityFile ~/.ssh/id_rsa_bitbucket
     AddressFamily inet

无法 push/pull 使用 IPv6 通过 SSH 访问 bitbucket

Can't push/pull to bitbucket via SSH using IPv6

git

ssh

bitbucket

vpn

ipv6