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SNMP Commands
4-157
4
conjunction with the corresponding entries in the Notify View assigned by the
snmp-server group command (page 4-160).
Example
Related Commands
snmp-server host (4-154)
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: 9-64 hexadecimal characters representing 5-32 octets)
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 4-154.) 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 “123456789” is equivalent to “1234567890” because a
trailing zero will be added to fill in the last octet if an odd number of
hexadecimal characters is specified.
Console(config)#snmp-server enable traps link-up-down
Console(config)#