Installation manual

3-45
SIGNAMAX LLC • www.signamax.eu
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 3-41 and
“Configuring Remote SNMPv3 Users” on page 3-48.)
The engine ID can be specified by entering 10 to 64 hexadecimal characters (5 to 32
octets in hexadecimal format). If an odd number of characters are specified, a trailing zero
is added to the value to fill in the last 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 3-27 Setting a Remote Engine ID
CLI – This example specifies a remote SNMPv3 engine ID.
Console(config)#snmp-server engineid remote 54321 192.168.1.19 4-90
Console(config)#exit
Console#show snmp engine-id 4-91
Local SNMP engineID: 8000002a8000000000e8666672
Local SNMP engineBoots: 1
Remote SNMP engineID IP address
80000000030004e2b316c54321 192.168.1.19
Console#