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Cant connect IPv6 linux server via Putty. Server IP should be like this: 2001:14c0:2:2f6f::6

But when i replace working IPv4 in my putty by this address, it dont connect returning: Unable to open connection to MYIPv6 Host does not exist

Please which files to check, commands to do to make IPv6 ssh connection working?

In /etc/sysconfig/network-scripts ssh config, I have:

Port 22
AddressFamily any
ListenAddress ::

ping6 works

ping myipv6::6 works too

ping myipv6::1 works too (received, no packet loss)

traceroute6 works too

share|improve this question
You have a routing problem at your end, according to ping6 and traceroute6. Post your complete IPv6 configuration, and the details of what the configuration is meant to be. – Michael Hampton Oct 5 '13 at 18:21

You should input the IPv6 address between brackets, like this:


then it will work.

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That notation is used if the IP address is in a URL. But I have never seen it used for ssh. Does PuTTY differ that much from other ssh clients? – kasperd Oct 6 '15 at 9:53
I had to add "%wlan0" onto the end of mine (IIRC this is called something like "specifying an interface) – don bright Oct 21 '15 at 22:01

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