Creating Snmp Groups - Cisco 500 Series Administration Manual

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STEP 4
STEP 5
STEP 6

Creating SNMP Groups

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- User Defined—Enter an OID not offered in the Select from list option.
Select or deselect Include in view. If this is selected, the selected MIBs are
included in the view, otherwise they are excluded.
Click Apply.
In order to verify your view configuration, select the user-defined views from the
Filter: View Name list. The following views exist by default:
• Default—Default SNMP view for read and read/write views.
• DefaultSuper—Default SNMP view for administrator views.
Other views can be added.
• Object ID Subtree—Displays the subtree to be included or excluded in the
SNMP view.
• Object ID Subtree View—Displays whether the defined subtree is included
or excluded in the selected SNMP view.
In SNMPv1 and SNMPv2, a community string is sent along with the SNMP frames.
The community string acts as a password to gain access to an SNMP agent.
However, neither the frames nor the community string are encrypted. Therefore,
SNMPv1 and SNMPv2 are not secure.
In SNMPv3, the following security mechanisms can be configured.
• Authentication—The device checks that the SNMP user is an authorized
system administrator. This is done for each frame.
• Privacy—SNMP frames can carry encrypted data.
Thus, in SNMPv3, there are three levels of security:
• No security (No authentication and no privacy)
Cisco 500 Series Stackable Managed Switch Administration Guide
SNMP
Creating SNMP Groups