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Configuring Username and Password Security
Configuring Local Password Security
If you want to remove both operator and manager password protection, use
the no password all command.
Username and Password Length.
The limit on usename and password length is 64 characters for the following
authentication methods:
■ Front-end—WEB User Interface, SSH, and Telnet
■ Back-end—RADIUS, TACACS+, and Local
General Rules for Usernames and Passwords
Usernames and passwords are case-sensitive. ASCII characters in the range
of 33-126 are valid, including:
■ A through Z uppercase characters
■ a through z lower case characters
■ 0 through 9 numeric characters
■ Special characters ‘ ~ ! @ # $ % ^ & * ( ) - _ = + [ ] { } \ | ; : ‘ “ , < > / ?
(see Restrictions, below)
The SPACE character is allowed to form a username or password pass-phrase.
The username must be in quotes, for example “The little brown fox”. A space
is not allowed as part of a username without the quotes. A password that
includes a space or spaces should not have quotes.
Restrictions for the Setmib Command
Usernames and passwords can be set using the CLI command setmib. They
cannot be set using SNMP.
■ Quotes are permitted for enclosing other characters, for example, a
username or password of abcd can be enclosed in quotes “abcd”
without the quotes becoming part of the username or password itself.
Quotes can also be inserted between other characters of a username
or password, for example, ab”cd. A pair of quotes enclosing
characters followed by any additional characters is invalid, for
example, “abc”d.
■ Spaces are allowed in usernames and passwords. The username or
password must be enclosed in quotes, for example, “one two three”.
A blank space or spaces between quotes is allowed, for example, “ ”.
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