Simple Network Management Protocol
5-8
5
Specifying a Remote Engine ID
To send inform messages to an SNMPv3 user on a remote device, you must first
specify the engine identifier for the SNMP agent on the remote device where the
user resides. 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. (See “Specifying Trap Managers and Trap Types” on page 5-4 and
“Configuring Remote SNMPv3 Users” on page 5-11.)
A new engine ID can be specified by entering 9 to 64 hexadecimal characters. If an
odd number of characters are specified, a trailing zero is added to the value to fill in
the missing octet. For example, the value “123456789” is equivalent to
“1234567890”.
Web – Click SNMP, SNMPv3, Remote Engine ID. Enter an ID of up to 64
hexadecimal characters and then click Save.
Figure 5-5 Setting an Engine ID
CLI – This example specifies a remote SNMPv3 engine ID.
Console(config)#snmp-server engine-id remote 54321 192.168.1.19 24-8
Console(config)#exit
Console#show snmp engine-id 24-9
Local SNMP engineID: 8000002a8000000000e8666672
Local SNMP engineBoots: 1
Remote SNMP engineID IP address
80000000030004e2b316c54321 192.168.1.19
Console#
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