Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!usc!sdd.hp.com!spool.mu.edu!uunet!ns-mx!tessa.iaf.uiowa.edu From: randy@tessa.iaf.uiowa.edu (randy frank) Newsgroups: comp.sys.sgi Subject: Finding the Ethernet card arp address Message-ID: <5201@ns-mx.uiowa.edu> Date: 2 Apr 91 17:52:09 GMT Sender: news@ns-mx.uiowa.edu Distribution: usa Organization: University of Iowa, Image Analysis Facility Lines: 18 Hello, I recently set up a time lock software system based on the first four bytes from /etc/sysinfo. Now I find that the new GTX boxes on our net have the same four bytes and differ only by the latter data. (The scheme worked very well when we had PIs). What I need now is a unique identifier for each system that is less than 8 bytes long. I figured I would use the arp address of the ethernet card in the box but I can't seem to find the proper routine to extract this piece of information. If you can help please Email me a short code segment illustrating the proceedure. thanks in advance, -- rjf. Randy Frank, Engineer | (319) 335-6712 University of Iowa, Image Analysis Facility | 73 EMRB randy@tessa.iaf.uiowa.edu | Iowa City, IA 52242