Hi team, here's a new case.
Problem Symptom
When a management IPv6 address is used to deploy the environment, an error is reported when adding a management node. Description: Connection to node xxx:22 failed. Error code: 0x186a2. Cause: The network of the node to be added is disconnected, or the user name or password is incorrect. Suggestion: Ensure that the host network is normal, enter the correct user name and password, and try again.

Problem Diagnosis
Locate the fault based on the error information.
Causes
Possible causes are as follows: The network is disconnected, the IP address is invalid, port 22 for IPv6 is not listened by the sshd service, or the entered user name and password of user root are incorrect.
Solution
Run the ping IP address command to check whether the network is reachable.
Check whether the entered IP address is correct.
Check whether the entered user name and password of user root are correct.
Check whether port 22 for IPv6 is listened by the sshd service properly. Use the IPv4 address to log in to the server and run the netstat -tupln|grep sshd command to check port tcp6 22.

If port 22 for IPv6 is not listened by the sshd service, run the vim /etc/ssh/sshd_config command to set the value of AddressFamily to any and configure the listening IP addresses in ListenAddress.


Run the systemctl reload sshd command to restart the sshd service.
Applicable Versions
OceanStor Pacific series 8.1.0


