Article View: comp.sys.dec
Article #1121Re: Getting ETHERNET address of VAX adapter
From: Ted Marshall
Date: Fri, 13 Apr 1990 16:49
Date: Fri, 13 Apr 1990 16:49
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In article <10847@cbmvax.commodore.com>, grr@cbmvax.commodore.com (George Robbins) writes: > Note that this shows you the original hardware address, not whatever > deviated thing DECnet sets it to (something based on the DECnet area.node). The working Ethernet address is set from the DECnet address as follows: Compute (Area * 1024) + Node_within_area, byte swap the result, producing the low two bytes of the Ethernet address (The other four bytes are AA-00-04-00). For example, DECnet address 4.72 yields (4 * 1024) + 72 = 4168 = 0x1048. Swap the bytes and insert into the Ethernet address, yielding AA-00-04-00-48-01. Hope this helps. -- Ted Marshall ...!ucbvax!mtxinu!blia!ted <or> ted@blia.bli.com ShareBase Corp., 14600 Winchester Blvd, Los Gatos, Ca 95030 (408)378-7000 The opinions expressed above are those of the poster and not his employer.
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!clyde.concordia.ca!uunet!wuarchive!usc!apple!voder!blia!ted From: ted@blia.BLI.COM (Ted Marshall) Newsgroups: comp.sys.dec Subject: Re: Getting ETHERNET address of VAX adapter Summary: Computing Ethernet address from DECnet address Message-ID: <11288@blia.BLI.COM> Date: 13 Apr 90 16:49:22 GMT References: <3431.26246304@fps.mcw.edu> <10847@cbmvax.commodore.com> Organization: Britton Lee, Los Gatos, CA Lines: 20