Tracing a MAC address to IP address: Solaris Post: 302445549

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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

08-16-2010

Registered User

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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LEARN ABOUT CENTOS

avahi-resolve-host-name

avahi-resolve(1)					      General Commands Manual						  avahi-resolve(1)

NAME

       avahi-resolve - Resolve one or more mDNS/DNS host name(s) to IP address(es) (and vice versa) using the Avahi daemon

SYNOPSIS

       avahi-resolve --name host-name ...

       avahi-resolve-host-name host-name ...

       avahi-resolve --address address ...

       avahi-resolve-address address ...

DESCRIPTION

       Resolve one or more mDNS/DNS host name(s) to IP address(es) (and vice versa) using the Avahi daemon.

OPTIONS

       When  passing  -n, specify one or more fully qualified mDNS/DNS host name(s) (e.g. "foo.local") to resolve into IP addresses on the command
       line. When passing -a, specify one or more IP address to resolve into host names.

       avahi-resolve-host-name is equivalent to avahi-resolve --name.

       avahi-resolve-address is equivalent to avahi-resolve --address.

       -n | --name
	      Translate one or more fully qualified host names into addresses.

       -a | --address
	      Translate one or more addresses into fully qualified host names.

       -v | --verbose
	      Enable verbose mode.

       -6     When resolving a host name, look for IPv6 addresses exclusively.

       -4     When resolving a host name, look for IPv4 addresses exclusively.

       -h | --help
	      Show help.

       -V | --version
	      Show version information.

AUTHORS

       The Avahi Developers <avahi (at) lists (dot) freedesktop (dot) org>; Avahi is available from http://avahi.org/

SEE ALSO

       avahi-publish-address(1), avahi-daemon(8)

COMMENTS

       This man page was written using xml2man(1) by Oliver Kurth.

Manuals 							       User							  avahi-resolve(1)

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