Jenkins : Configuring SSH remote host for Mac slave isn't working


I'm trying to configure a Node for Mac machine (with mac osx 10.11.6), for that purpose I need to configure SSH host with the ip of my mac.

SSH service is running on Mac and I connect to it via SSH client: > ssh admin@<ip>

The problem is when trying to configure SSH remot host (Home > Manage Jenkins > Configure System). I'm giving the same IP with the same credentials but its keep giving:

Unable to connect to Server!

Please advice...