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Date:      Fri, 15 Dec 1995 15:10:04 -0500
From:      "Garrett A. Wollman" <wollman@lcs.mit.edu>
To:        Dave Hayes <dave@kachina.jetcafe.org>
Cc:        questions@freebsd.org
Subject:   ARP problems?
Message-ID:  <9512152010.AA23301@halloran-eldar.lcs.mit.edu>
In-Reply-To: <199512151930.LAA09329@kachina.jetcafe.org>
References:  <199512151930.LAA09329@kachina.jetcafe.org>

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<<On Fri, 15 Dec 1995 11:30:25 -0800, Dave Hayes <dave@kachina.jetcafe.org> said:

> <in another window>
> # arp -s 206.170.75.90 0:0:c0:58:b9:c7 pub

> <back in the tcpdump window>
> 00:01:10.865938 0:0:c0:58:b9:c7 ff:ff:ff:ff:ff:ff 0806 42: arp who-has 206.170.75.90 tell 206.170.75.90

> Is this bogus, or a subtlety of the arp protocol I don't understand? 

It is an intentional attempt on the part of the ARP implementation to
provoke anyone else who claims that IP address to send back a reply.
If somebody actually did reply, then you would get a warning message
on the console about it.

-GAWollman

--
Garrett A. Wollman   | Shashish is simple, it's discreet, it's brief. ... 
wollman@lcs.mit.edu  | Shashish is the bonding of hearts in spite of distance.
Opinions not those of| It is a bond more powerful than absence.  We like people
MIT, LCS, ANA, or NSA| who like Shashish.  - Claude McKenzie + Florent Vollant



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