Unable to SSH from Ubuntu to Cisco IOS while performing automation.

Unable to SSH from Ubuntu to Cisco IOS while performing automation. In Ubuntu Linux: Just Add following in ssh_config for ssh to work from ubuntu to Cisco Router nano /etc/ssh/ssh_config KexAlgorithms diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1 HostKeyAlgorithms +ssh-rsa

Post adding KexAlgorithms to /etc/ssh/ssh_config