Command Line Interface
4-68
4
Related Commands
snmp-server host (4-65)
snmp-server engine-id
This command configures an identification string for the SNMPv3 engine. Use the
no
form to restore the default.
Syntax
snmp-server engine-id
{
local
|
remote
{
ip-address
}}
engineid-string
no snmp-server engine-id
{
local
|
remote
{
ip-address
}}
•
local
- Specifies the SNMP engine on this switch.
•
remote
- Specifies an SNMP engine on a remote device.
•
ip-address
- The Internet address of the remote device.
•
engineid-string
- String identifying the engine ID.
(Range: 10-64 hexadecimal characters)
Default Setting
A unique engine ID is automatically generated by the switch based on its MAC
address.
Command Mode
Global Configuration
Command Usage
• An SNMP engine is an independent SNMP agent that resides either on this
switch or on a remote device. This engine protects against message replay,
delay, and redirection. The engine ID is also used in combination with user
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 4-65.) 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.
• 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 4-74).
Example
Console(config)#snmp-server engine-id local 12345abcdef
Console(config)#snmp-server engineID remote 54321fedcba
Console(config)#
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