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Unrecognizable or unauthentic packet received

To: nv-l@lists.tivoli.com
Subject: Unrecognizable or unauthentic packet received
From: "Dan Cassady" <cassadyd@us.ibm.com>
Date: Mon, 30 Apr 2001 16:50:08 -0400
Hi,

Can you tell me what the following error message received in midmand.log
really means:

988657485: 04/30/01 15:04:45 Unrecognizable or unauthentic packet received.

A tcpdump from Netview bears the following:

<SrcIPAddress>.1025 > <NetviewIPAddress>.162: [version(1)!=0]

A tcpdump from the firewall:

<SrcIPAddress>.1025 > <NetviewIPAddress>.162: [version(1)!=0]

After investigating, it was determined to be a vrrpNewMasterTrap sent by a
Nokia Firewall running checkpoint fw-1 code.  The text of the tcpdump
output leads me to believe its not sending the SNMP traps using SNMP-v1,
which is why MLM is handling these as such.  Have you seen this before  ?

Thanks in advance for your response.

Netview 6.0.2
AIX 4.3.3
MLM 5.0.6

MLM handles incoming SNMP traffic and forwards it onto Netview.

Dan Cassady
   IBM Global Services, Service Delivery Center - South
   DSM Team I/T Specialist Dept/EULF Building 676 RM B428 RTP, NC 27709


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