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SNMP
Configuring SNMP Engine ID
Configuring SNMP Engine ID
STEP 1
STEP 2
STEP 3
STEP 4
STEP 5
Cisco 220 Series Smart Plus Switches Administration Guide Release 1.0.0.x
The Engine ID is only used by SNMPv3 entities to uniquely identify them. An SNMP
agent is considered an authoritative SNMP engine. This means that the agent
responds to incoming messages (Get, GetNext, GetBulk, Set), and sends trap
messages to a manager.
Each SNMP agent maintains local information that is used in SNMPv3 message
exchanges. The default SNMP Engine ID is comprised of the enterprise number
and the default MAC address. The SNMP Engine ID must be unique for the
administrative domain, so that no two devices in a network have the same Engine
ID.
Local information is stored in four MIB variables that are read-only (snmpEngineId,
snmpEngineBoots, snmpEngineTime, and snmpEngineMaxMessageSize).
To define the SNMP Engine ID:
Click SNMP > Engine ID.
In the Local Engine ID area, choose one of the following options as the local
Engine ID:
•
Use Default—Use the device-generated Engine ID. The default Engine ID is
based on the switch MAC address, and is defined per standard as:
-
First 4 octets
Fifth octet
-
—Set to 3 to indicate the MAC address that follows.
Last 6 octets
-
•
User Defined—Enter the local device Engine ID. The field value is a
hexadecimal string (range: 10 to 64). Each byte in the hexadecimal character
strings is represented by two hexadecimal digits.
Click Apply. The local Engine ID is defined, and the Running Configuration is
updated.
The Remote Engine ID Table lists all remote SNMP Engine IDs supported by the
switch. This table shows the mapping relationship between IP addresses of the
SNMP engine and Engine ID. Click Add to add a new remote Engine ID.
Enter the following information:
•
Server IP Address/Name—Enter the IP address or domain name of the
remote host that receives the traps.
—First bit = 1, the rest is the IANA enterprise number.
—MAC address of the switch.
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