Can't SSH to droplet through ipv4, but ipv6 is accessable

January 19, 2019 455 views
IPv6

I can’t ssh to my droplet through ipv4 connection, it hangs until operation timed out.

Every time it happens, I can see sockets with SYN_RECV state on the remote machine that I wanted to access.

However, I can ssh to it though ipv6 connection.

And ping works well both through ipv4 and ipv6.

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