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From: Andy Burns <usenet@andyburns.uk>
Newsgroups: comp.os.linux.misc
Subject: Re: I never thought of this scenario
Date: Mon, 8 Apr 2024 15:22:47 +0100
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Lawrence D'Oliveiro wrote:

> The Natural Philosopher wrote:
> 
>> I think it may in fact do a *ping*.
> 
> You want it to do an ARP, not a ping. Ping is routable, ARP is not.

ping is blockable, ARP is not (if you want a functioning IP stack).

The oddest device I have doesn't actually respond to ARP requests, 
instead it continually sends out an ARP reply containing its own MAC and 
IP addrs.