IP, actually TCP/IP, means that the system has a set of rules that allow for control using Transmission Control Protocol/Internet Protocol standards. Key concept, is that it is a communications standard, much like spoken words is a standard, even if the words are different (different languages).
To say 'IP' control is somewhat inaccurate. It is network control using the TCP/IP standard. But, it gets a bit pedantic when we demand things to be so particular.
Still, for those who may be confused on it:
In a consumer device, there are several different common ways TCP/IP may be used for the end consumer:
1. A purpose built app that runs on a phone and gives a nice user interface.
2. A built in web server that shows web pages for a user interface.
3. Command line communication which provides information about the device.
Additionally, most modern AVRs offer streaming of audio, firmware updates, and other internal apps which all use TCP/IP standards.
So, there are several different forms of network control which are available. All of them may exist at once, or only one or two may be implemented at a time. One may offer more features, one may offer less. They may cross communicate with each other. They may not. One may work really well and be super consistent, another may be lousy and really not work well at all. Much like the spoken word offers us different languages, it is not the written word. And just because you can speak, doesn't mean you can read. And just because you can speak English, doesn't mean you can speak French. But, it still means you can speak. Speaking would be the standard protocol.
I was really just trying to keep it really simple in my statement to help someone who may not understand what IP control is, but it does make sense to expand on what IP control could mean and often does mean to a typical user. But, the web interface is just as valid.
All of this ends up getting into the weeds of it all more than anything else and certainly people who do networking daily are far more in tune with the specifics and the deep weeds of TCP/IP and network control.
TCP/IP is the backbone of internet communications. Learn how this suite of protocols works, its pros and cons and how it differs from the OSI model.
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