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Configuring Username and Password Security

Saving Security Credentials in a Config File

■ SNMP security credentials, including SNMPv1 community names and

SNMPv3 usernames, authentication, and privacy settings

■ 802.1X port-access passwords and usernames

■ TACACS+ encryption keys

■ RADIUS shared secret (encryption) keys

■ Public keys of SSH-enabled management stations that are used by the

switch to authenticate SSH clients that try to connect to the switch

Local Manager and Operator Passwords

The information saved to the running-config file when the include-credentials

command is entered includes:

password manager [user-name <name>] <hash-type> <pass-hash>

password operator [user-name <name>] <hash-type> <pass-hash>

where

<name> is an alphanumeric string for the user name assigned to the

manager or operator.

<hash-type> indicates the type of hash algorithm used: SHA-1 or plain

text.

<pass-hash> is the SHA-1 authentication protocol’s hash of the pass-

word or clear ASCII text.

For example, a manager username and password may be stored in a running-

config file as follows:

password manager user-name George SHA1

2fd4e1c67a2d28fced849ee1bb76e7391b93eb12

Use the write memory command to save the password configurations in the

startup-config file. The passwords take effect when the switch boots with the

software version associated with that configuration file.

Caution If a startup configuration file includes other security credentials, but does not

contain a manager or operator password, the switch will not have password

protection and can be accessed through Telnet, the serial port, or web

interface with full manager privileges.

2-12

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