Interpreting varbinds in report packets, Snmp v3 configuration examples, Simple snmp v3 configuration – Brocade TurboIron 24X Series Configuration Guide User Manual

Page 209: Snmp v3, Configuration examples

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Brocade TurboIron 24X Series Configuration Guide

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SNMP v3 Configuration examples

Syntax: show snmp user

Interpreting varbinds in report packets

If an SNMP version 3 request packet is to be rejected by an SNMP agent, the agent sends a report
packet that contains one or more varbinds. The varbinds contain additional information, showing
the cause of failures. An SNMP manager application decodes the description from the varbind. The
following table presents a list of varbinds supported by the SNMP agent.

SNMP v3 Configuration examples

The following sections present examples of how to configure SNMP v3.

Simple SNMP v3 configuration

TurboIron(config)#snmp-s group admingrp v3 priv read all write all notify all

TurboIron(config)#snmp-s user adminuser admingrp v3 auth md5 <auth password> priv

<privacy password>

TurboIron(config)#snmp-s host <dest-ip> version v3 privacy adminuser

Table 0.2:

Varbind object Identifier

Description

1. 3. 6. 1. 6. 3. 11. 2. 1. 3. 0

Unknown packet data unit.

1. 3. 6. 1. 6. 3. 12. 1. 5. 0

The value of the varbind shows the engine ID that needs to be used in
the snmp-server engineid command

1. 3. 6. 1. 6. 3. 15. 1. 1. 1. 0

Unsupported security level.

1. 3. 6. 1. 6. 3. 15. 1. 1. 2. 0

Not in time packet.

1. 3. 6. 1. 6. 3. 15. 1. 1. 3. 0

Unknown user name. This varbind may also be generated:

If the configured ACL for this user filters out this packet.

If the group associated with the user is unknown.

1. 3. 6. 1. 6. 3. 15. 1. 1. 4. 0

Unknown engine ID. The value of this varbind would be the correct
authoritative engineID that should be used.

1. 3. 6. 1. 6. 3. 15. 1. 1. 5. 0

Wrong digest.

1. 3. 6. 1. 6. 3. 15. 1. 1. 6. 0

Decryption error.

TurboIron#show snmp user

username = bob

ACL id = 2

group = admin

security model = v3

group ACL id = 0

authtype = md5

authkey = 3aca18d90b8d172760e2dd2e8f59b7fe

privtype = des, privkey = 1088359afb3701730173a6332d406eec

engine ID= 800007c70300e052ab0000

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