Specifications

SNMP Configuration Summary
Using SNMP Contexts to Access Specific MIBs
SecureStack A2 Configuration Guide 4-3
4.1.4 Using SNMP Contexts to Access Specific MIBs
By default, when operating from the switch CLI, SecureStack A2 devices allow access to all SNMP
MIBs or contexts. A context is a collection of MIB objects, often associated with a particular
physical or logical device.
If no optional context parameters are configured for v1 and v2 “community” names and v3 “user”
groups, these groups are able to access all SNMP MIB objects when in switch mode.
Specifying a context parameter when setting up SNMP user group would permit or restrict the
group’s switch management access to the MIB(s) specified by the context (MIB object ID) value.
All SNMP contexts known to the device can be displayed using the show snmp context command
as described in Section 4.3.4.2.
Example
This example permits the “powergroup” to manage all MIBs via SNMPv3:
v2c NoAuthNoPriv Community string None Uses a community string match for
authentication.
v3 NoAuthNoPriv User name None Uses a user name match for
authentication.
AuthNoPriv MD5 or SHA None Provides authentication based on
the HMAC-MD5 or HMAC-SHA
algorithms.
authPriv MD5 or SHA DES Provides authentication based on
the HMAC-MD5 or HMAC-SHA
algorithms. Provides DES 56-bit
encryption in addition to
authentication based on the
CBC-DES (DES-56) standard.
A2(rw)->set snmp access powergroup security-model usm
Table 4-1 SNMP Security Levels (Continued)
Model Security Level Authentication Encryption How It Works