Find IP or MAC Address for iOS Devices
IP Address
1.) Click the 'Settings' app
2.) Select 'Wi-Fi'
3.) Press the information icon next to the network you are connected to
4.) Your IP address will be listed, with other network information
MAC Address
1.) Click the 'Settings' app
2.) Scroll down to 'General' (it will be below the 'Do Not Disturb' option, and not shown in the below image)
3.) Click 'About'
4.) Scroll down until you see 'Wi-Fi Address' (this is your MAC address)