Adobe esign callback url for private server or endpoint

I used adobe api and created java application and running it from one server 10.30.32.45 which private and i am added callback url for it in adobe esign application in ouath 2.0 configuration for redirect url 
url :https://10.30.32.45:443/icsapis/agent/oauth/callback like this but it is not working so i want to confirm will Adobe servers can access private IP addresses like 10.x.x.x directly.