The appeal and strength of the iPhone is that you can understand how to use it without reading the manual. However, there are times when you think you know it but you don't understand it correctly. In this section, we will explain in an easy-to-understand manner "why the iPhone can't be heard anymore". This time, we will answer the question "How do I know the IP address of a device such as an iPhone when connecting to Wi-Fi?"
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iPhone communicates with other devices according to the communication protocol (protocol) called "TCP / IP". At that time, the iPhone is assigned numerical information called "IP address" that does not overlap with other devices, and when connecting to Wi-Fi, it is managed by the IP address lending program (DHCP server) running on the access point. .. Generally, in a home LAN, the router plays the role of a DHCP server and assigns IP addresses to connected smartphones and PCs so that they do not overlap.
So, if you look at the DHCP server management screen of the router, you can see what IP address is assigned to the iPhone. You can also check the IP address of your home computer (connected to the same network) or AV device in the same way.
However, the DHCP server side is not managed by the model name of the smartphone or PC (identified by the hardware-specific information called MAC address), so even if you look at the management screen of the router, the IP address lending status is It's hard to understand.
As for the iPhone, you can check the IP address currently assigned by the DHCP server by tapping the connected Wi-Fi access point in "Settings" → "Wi-Fi". If you specify the IP address from a communication terminal such as a computer connected to the same LAN, you can communicate directly with the iPhone.
If you want to find out the IP address assigned to a communication terminal connected to the same LAN, iOS does not have a function to look up the IP address on the network, so use a third-party app such as "Fing" to find out. Will be. You can also look up the IP address of your iPhone at the same time, so it's convenient to use.
