These numbers seem to be the length of the following string. Eg. 13 for the
length of your engineID and 4 for "Root". I found something here concerning
this:http://net-snmp.sourceforge.net/docs/mibs/snmpUsmMIB.html#SnmpAdminString
Cheers,Dirk
From: marcelino_1101c...@hotmail.com
To: net-snmp-users@lists.sourceforge.net
Subject: About indexation in usmUserTable and vacmMIBObjects
Date: Mon, 16 Dec 2013 00:04:08 -0500
Hi, I would like someone help me to understand some indexes I don't know where
are from. All the entries in the usmUserTable have indexed the engineID in
decimal format and the userName in decimal format too. For the users "Root" and
"Supervisor" configured within an Ubuntu agent with engineID
0x80001f88804fdfdc455ce79c52 I obtained the following entry doing a walk:
1.3.6.1.6.3.15.1.2.2.1.3.13.128.0.31.136.128.79.223.220.69.92.231.156.82.4.82.111.111.116
=
Root1.3.6.1.6.3.15.1.2.2.1.3.13.128.0.31.136.128.79.223.220.69.92.231.156.82.10.83.117.112.101.114.118.105.115.111.114
= Supervisor
usmUserSecurityName
engineID userName
What is that 13 before the engineID and that 4 and 10 before the userNames?
Another example from the securityToGroupTable related to the users created,
these are the results of the walk. This table indexes the securityModel (3 for
both, because of usm snmpv3) and the securityName that is the same of the
userName.
1.3.6.1.6.3.16.1.2.1.3.3.10.83.117.112.101.114.118.105.115.111.114
= grpSupervisor
1.3.6.1.6.3.16.1.2.1.3.3.4.82.111.111.116 =
grpRoot
vacmGroupName securityModel userName
Again, I don't understand where do the 10 and 4 come?
Are this numbers something similar to the situation when someone wants to
create a row in the ccCopyTable of a cisco router in order to send to a
computer the running-config? In that case, I create a row with any arbitrary
integer I want... Is that situation happening here? But, in that case, the
index of the row I want to create will be inmediately after the OID, like in
the vacmGroupName example (10 and 4) but in the usmUserSecurityName there are 2
numbers in different places inside the same object and that doesn't make any
sense to me.
I hope I made myself clear with the examples and what is my question. What do
that numbers mean and where they come from? Thanks in advance....
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