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• A remote engine ID is required when using SNMPv3 informs. (See
snmp-server host on page 4-110.) The remote engine ID is used to compute
the security digest for authenticating and encrypting packets sent to a user on
the remote host. SNMP passwords are localized using the engine ID of the
authoritative agent. For informs, the authoritative SNMP agent is the remote
agent. You therefore need to configure the remote agent’s SNMP engine ID
before you can send proxy requests or informs to it.
• Trailing zeroes need not be entered to uniquely specify a engine ID. In other
words, the value “1234” is equivalent to “1234” followed by 22 zeroes.
• A local engine ID is automatically generated that is unique to the switch. This
is referred to as the default engine ID. If the local engine ID is deleted or
changed, all SNMP users will be cleared. You will need to reconfigure all
existing users (page 4-119).
Example
Related Commands
snmp-server host (4-110)
show snmp engine-id
This command shows the SNMP engine ID.
Command Mode
Privileged Exec
Example
This example shows the default engine ID.
Console(config)#snmp-server engine-id local 12345
Console(config)#snmp-server engineID remote 54321 192.168.1.19
Console(config)#
Console#show snmp engine-id
Local SNMP engineID: 8000002a8000000000e8666672
Local SNMP engineBoots: 1
Remote SNMP engineID IP address
80000000030004e2b316c54321 192.168.1.19
Console#
Table 4-38 show snmp engine-id - display description
Field Description
Local SNMP engineID String identifying the engine ID.
Local SNMP engineBoots The number of times that the engine has (re-)initialized since the snmp EngineID
was last configured.
Remote SNMP engineID String identifying an engine ID on a remote device.
IP address IP address of the device containing the corresponding remote SNMP engine.