What is UPnP?
In: Technology
UPnP devices yell about their presence to anybody’s willing to listen. Say you plug in a new printer. That printer yells “hey, I’m a new printer, happy to meet you all”. DHCP will assign that printer a local IP address. If you happen to know that address, you can access it – great. But there are plenty of devices in your local network and they don’t really care about discovering their neighbors. What UPnP does differently is that it makes sure everybody else knows about that address by propagating that device’s existence to everyone else.
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