Layers of misdirection, and I might have to redo this before I can get to the five-year-old level.
My group is in the coffee shop, and there's enough people to require a few tables, and my table runs out. The people at my table know me, and know Dave = "seat nearest the bathroom". This part is MAC address to to IP address, which is done by Address Resolution Protocol, or ARP, and you can use computers your whole life without caring about this.
But next table over doesn't know me or where I sit, so when you ask them (serving as gateway) to pass some sugar, it is the job of the IP layer to handle the sugar-to-table part and the transport to know who to pass it to here.
Plus, on some tables, people just pass left, or right, but some might throw it right to me over the air. Actually, "how it goes" is more the job of transport layer, although which-one's-Dave is part of that.
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Layers of misdirection, and I might have to redo this before I can get to the five-year-old level.
My group is in the coffee shop, and there's enough people to require a few tables, and my table runs out. The people at my table know me, and know Dave = "seat nearest the bathroom". This part is MAC address to to IP address, which is done by Address Resolution Protocol, or ARP, and you can use computers your whole life without caring about this.
But next table over doesn't know me or where I sit, so when you ask them (serving as gateway) to pass some sugar, it is the job of the IP layer to handle the sugar-to-table part and the transport to know who to pass it to here.
Plus, on some tables, people just pass left, or right, but some might throw it right to me over the air. Actually, "how it goes" is more the job of transport layer, although which-one's-Dave is part of that.