Above all, your are capable of finding the local IP address on your OS X device. Firstly, review the following instructions to find it easily.
1. To get your local IP address on OS X , first click the Apple Menu and choose System Preferences
2. Click the Network icon
3. Click Advanced in the lower right corner
4. Click TCP/IP on the top menu
Along with your local IP address, also will be your subnet and router/gateway address.