4 Command Line Interface

passwords to generate the security keys for authenticating and encrypting SNMPv3 packets.

•A remote engine ID is required when using SNMPv3 informs. (See snmp-server host on page 4-114.)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 4-122).

Example

Console(config)#snmp-server engine-id local 12345 Console(config)#snmp-server engineID remote 54321 192.168.1.19 Console(config)#

Related Commands

snmp-server host (4-114)

show snmp engine-id

This command shows the SNMP engine ID.

Command Mode

Privileged Exec

Example

This example shows the default engine ID.

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 4-40 show snmp engine-id - display description

 

 

 

 

Field

Description

 

 

 

 

Local SNMP engineIDString 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.

 

 

 

4-118