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Cisco IOS in a Nutshell, 2nd Edition by James Boney

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Name

snmp-server engine-id — global

Synopsis

snmp-server engine-id local string
no snmp-server engine-id

Configures

SNMP Version 3

Default

None

Description

This command sets the ID of the router’s SNMP engine to string. The engine ID is used by SNMP Version 3 when it computes various cryptographic keys. This book doesn’t cover SNMPv3 configuration, so there isn’t a lot to say about the engine ID. However, if you have configured SNMPv3, it is important to know that changing the engine ID has many side effects, including invalidating the authentication information for all SNMP users.

The ID string is 24 characters long. If you do not specify the entire 24 characters, it will be padded with zeros on the right.

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