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From: Lawrence D'Oliveiro <ldo@nz.invalid>
Newsgroups: comp.os.linux.misc
Subject: Re: I never thought of this scenario
Date: Tue, 9 Apr 2024 03:56:39 -0000 (UTC)
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On Mon, 8 Apr 2024 18:25:07 -0500, Grant Taylor wrote:

> DHCP operates on top of UDP which operates on top of IP.

It works specifically on 169.254 addresses, because those are the only 
kind you can use without a proper IP configuration.

> ARP operates on the same level as and /beside/ IP.

They are both non-routable. You might say that DHCP is technically layer 
3, but it is restricted to the domain of layer 2.