Newsgroups: comp.protocols.tcp-ip Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!think.com!barmar From: barmar@think.com (Barry Margolin) Subject: Re: self-referential arp? Message-ID: <1991Apr19.060940.4087@Think.COM> Sender: news@Think.COM Organization: Thinking Machines Corporation, Cambridge MA, USA References: <1991Apr18.181504.21390@phri.nyu.edu> Date: Fri, 19 Apr 91 06:09:40 GMT In article <1991Apr18.181504.21390@phri.nyu.edu> roy@alanine.phri.nyu.edu (Roy Smith) writes: > Does it make any sense for something to arp for its own ethernet >address? Many systems do this when they first boot. If it gets a reply, it means that someone configured two hosts with the same address, and it can then display an error message. However, this doesn't seem to be what was happening in your case, because it ARPs for itself whenever it receives the at-nbp packet. My guess is that it's a configuration problem. -- Barry Margolin, Thinking Machines Corp. barmar@think.com {uunet,harvard}!think!barmar