Is your phone a floating or fixed ip?

pu1. It depends on how you connect your cell phone, but if you use 3g or lte data, it's a floating ip

2017-12-16

OK

pu3. If you use a Wi-Fi connection, if the Internet connected to the Wi-Fi is using a floating ip, it is a fixed ip if it is using a fixed ip. Usually, it's a floating ip

2017-12-16

OK