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Special Forums IP Networking Tracing a MAC address to IP address: Solaris Post 302445549 by notreallyhere on Monday 16th of August 2010 08:17:11 AM
Old 08-16-2010
Tracing a MAC address to IP address: Solaris

Hi there

I lost connectivity to one of our remote systems and when I checked the messages log I found the following:

Code:
 Aug 10 23:42:34 host xntpd[296]: [ID 774427 daemon.notice] time reset (step) 1.681729 s
Aug 16 13:20:51 host ip: [ID 876157 kern.warning] WARNING: node "mac address" is using our IP address x.x.x.x on aggr1
Aug 16 13:20:51 host last message repeated 1 time
Aug 16 13:21:51 host snmpXdmid: [ID 181857 daemon.error] Error receiving PDU Decode the header of message failed: data lengths that long are not supported.
Aug 16 13:21:51 host snmpXdmid: [ID 352064 daemon.error] Error receiving packet from agent; rc = -1.
Aug 16 13:21:51 host snmpXdmid: [ID 669004 daemon.error] Will attempt to re-establish connection.
Aug 16 13:22:17 host ip: [ID 876157 kern.warning] WARNING: node "mac address" is using our IP address x.x.x.x on aggr1
Aug 16 13:22:17 host last message repeated 2 times
Aug 16 13:22:17 host ip: [ID 567813 kern.warning] WARNING: aggr1 has duplicate address x.x.x.x (claimed by "mac address"); disabled

So the messages indicate a MAC address, but is there a way I can trace that MAC address to an IP address so that I can solve where this issue could have started? I am of course assuming that someone tried to configure a duplicate IP on another system and that caused a connectivity issue.
 

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PAPS(1) 						      General Commands Manual							   PAPS(1)

NAME
paps - UTF-8 to PostScript converter using Pango SYNOPSIS
paps [options] files... DESCRIPTION
paps reads a UTF-8 encoded file and generates a PostScript language rendering of the file. The rendering is done by creating outline curves through the pango ft2 backend. OPTIONS
These programs follow the usual GNU command line syntax, with long options starting with two dashes (`-'). A summary of options is included below. --landscape Landscape output. Default is portrait. --columns=cl Number of columns output. Default is 1. --font=desc Set the font description. Default is Monospace 12. --rtl Do rtl layout. --paper ps Choose paper size. Known paper sizes are legal, letter, a4. Default is A4. --bottom-margin=bm Set bottom margin in postscript points (1/72 inch). Default is 36. --top-margin=tm Set top margin. Default is 36. --left-margin=lm Set left margin. Default is 36. --right-margin=rm Set right margin. Default is 36. --help Show summary of options. --header Draw page header for each page. --markup Interpret the text as pango markup. --encoding=ENCODING Assume the documentation encoding is ENCODING. --lpi Set the lines per inch. This determines the line spacing. --cpi Set the characters per inch. This is an alternative method of specifying the font size. --stretch-chars Indicates that characters should be stretched in the y-direction to fill up their vertical space. This is similar to the texttops behaviour. AUTHOR
paps was written by Dov Grobgeld <dov.grobgeld@gmail.com>. This manual page was written by Lior Kaplan <kaplan@debian.org>, for the Debian project (but may be used by others). April 17, 2006 PAPS(1)
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