Date: Sat, 12 May 2007 01:03:29 -0500 From: Dan Nelson <dnelson@allantgroup.com> To: Brett Glass <brett@lariat.net> Cc: questions@freebsd.org Subject: Re: Inverse ARP query Message-ID: <20070512060329.GD2364@dan.emsphone.com> In-Reply-To: <200705120530.XAA13036@lariat.net> References: <200705120530.XAA13036@lariat.net>
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In the last episode (May 11), Brett Glass said: > Is there a command in FreeBSD that can be used to do an inverse ARP > query (that is, supply a MAC address and have the device respond with > its IP)? I have several hardware devices here whose IP addresses I do > not know, but their MAC addresses are printed on the labels. To > reprogram and reset them, I need their IPs so that I can get into > them via a telnet or Web interrace. I could scan for the devices' > addresses, but this would take months. But if they respond to inverse > ARP queries, I can find out in an instant what their IP addresses > are. ports/net/arping should do what you want. "arping aa:bb:cc:dd:ee:ff" prints the remote system's IP address as part of its response string. -- Dan Nelson dnelson@allantgroup.com
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