Snmp-Server Engineid Local - D-Link DES-3010FA Cli Manual
Layer 2 switch, 8 port 10/100 802.3af poe managed switch plus (1)gigabit copper and (1)sfp interface
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D-Link DES-3010FA/GA/PA CLI Reference Guide
snmp-server engineID local
The snmp-server engineID local Global Configuration mode command specifies the Simple Network Manage-
ment Protocol (SNMP) engineID on the local device. To remove the configured engine ID, use the no form of this
command.
Syntax
snmp-server engineID local {engineid-string | default}
no snmp-server engineID local
Parameters
•
engineid-string—Specifies a character string that identifies the engine ID. (Range: 5-32 characters)
•
default—The engine ID is created automatically based on the device MAC address.
Default Configuration
The engine ID is not configured.
If SNMPv3 is enabled using this command, and the default is specified, the default engine ID is defined per stan-
dard as:
•
First 4 octets — first bit = 1, the rest is IANA Enterprise number = 674.
•
Fifth octet — set to 3 to indicate the MAC address that follows.
•
Last 6 octets — MAC address of the device.
Command Mode
Global Configuration mode
User Guidelines
To use SNMPv3, you have to specify an engine ID for the device. You can specify your own ID or use a default
string that is generated using the MAC address of the device.
If the SNMPv3 engine ID is deleted or the configuration file is erased, SNMPv3 cannot be used. By default,
SNMPv1/v2 are enabled on the device. SNMPv3 is enabled only by defining the Local Engine ID.
If you want to specify your own ID, you do not have to specify the entire 32-character engine ID if it contains trail-
ing zeros. Specify only the portion of the engine ID up to the point where just zeros remain in the value. For exam-
ple, to configure an engine ID of 123400000000000000000000, you can specify snmp-server engineID local
1234.
Since the engine ID should be unique within an administrative domain, the following is recommended:
For a standalone device, use the default keyword to configure the engine ID.
Changing the value of the engine ID has the following important side-effect. A user's password (entered on the
command line) is converted to an MD5 or SHA security digest. This digest is based on both the password and the
local engine ID. The user's command line password is then destroyed, as required by RFC 2274. As a result, the
security digests of SNMPv3 users become invalid if the local value of the engine ID change, and the users will
have to be reconfigured.
You cannot specify an engine ID that consists of all 0x0, all 0xF or 0x000000001.
The show running-config Privileged EXEC mode command does not display the SNMP engine ID configuration.
To see the SNMP engine ID configuration, enter the snmp-server engineID local GlobalConfiguration mode
command.
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