RE: [nv-l] Teach me to fish
2004-08-23 09:30:22
You didn't specify when you did a TCPDUMP of where you
were tracing. But the cause of the authentication failures may not be NetView.
Some other device on the segment may be probing. Next time you can, trace all
incoming port 161 requests and not just from the NetView server. Maybe someone
is running another app on your network.
Try
doing an snmpwalk command on the box and look for the SNMP settings.
Somewhere, if you use the community with write access, you should find the
SNMP settings for the read and/or write communities. Netview or some other
manager must be polling the device with the wrong community name. Your device
should allow you to do a SNMP set operation to the OID which defines the read
and/or write community name.
What
community is Netview using for SNMP polling? public is the usual default.
Perhaps your device has been set-up to only allow access via different
community.
Good
luck
Robin
I've got a rather strange problem and hopefully someone can
give me a clue where to start digging.
I have an AIX 5.1 system that has the NetView agent installed
and working just fine. The problem is that I am constantly (6-7 per
minute) getting traps (RPT below) from this server. I have run TCPDUMP
(external and loopback) and verified that queries with the wrong community
string are NOT coming in - hence it something internal to the box. I
have disabled the NetView agent and the problem continues. I have
disabled SNMP and of course it stops. Hence it's something IN the
box.
Any idea how I can start digging into this problem?
Thanks Steve
=== TRAP.RPT
========================================================= DESCRIPTION : Mon Aug 23 08:38:53 2004
puxbmra1 A IBM Incorrect
Community
Name (authenticationFailure Trap) NOTES : INFO :
HOSTNAME :
puxbmra1
ENTERPRISE : ibm
1.3.6.1.4.1.2.3.1.2.1.1.3
GENERIC : 4
SPECIFIC :
0
LOGGEDTIME : 08/23/04
08:38:53
SEVERITY :
Warning
CATEGORY :
Node Configuration Events
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