ZyXEL Communications XS-3900-48F, Руководство пользователя

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Chapter 36 Access Control
XS3900-48F User’s Guide
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36.4 Setting Up Login Accounts
Up to five people (one administrator and four non-administrators) may access the Switch via web
configurator at any one time.
• An administrator is someone who can both view and configure Switch changes. The username for
the Administrator is always admin. The default administrator password is 1234.
Authentication Select an authentication algorithm. MD5 (Message Digest 5) and SHA (Secure Hash
Algorithm) are hash algorithms used to authenticate SNMP data. SHA authentication is
generally considered stronger than MD5, but is slower.
Password Enter the password of up to 32 ASCII characters for SNMP user authentication.
Privacy Specify the encryption method for SNMP communication from this user. You can choose
one of the following:
• DES - Data Encryption Standard is a widely used (but breakable) method of data
encryption. It applies a 56-bit key to each 64-bit block of data.
• AES - Advanced Encryption Standard is another method for data encryption that
also uses a secret key. AES applies a 128-bit key to 128-bit blocks of data.
Password Enter the password of up to 32 ASCII characters for encrypting SNMP packets.
Group SNMP v3 adopts the concept of View-based Access Control Model (VACM) group. SNMP
managers in one group are assigned common access rights to MIBs. Specify in which
SNMP group this user is.
admin - Members of this group can perform all types of system configuration,
including the management of administrator accounts.
readwrite - Members of this group have read and write rights, meaning that the user
can create and edit the MIBs on the Switch, except the user account and AAA
configuration.
readonly - Members of this group have read rights only, meaning the user can collect
information from the Switch.
Add Click Add to insert the entry in the summary table below and save your changes to the
Switch’s run-time memory. The Switch loses these changes if it is turned off or loses
power, so use the Save link on the top navigation panel to save your changes to the
non-volatile memory when you are done configuring.
Cancel Click Cancel to reset the fields to your previous configuration.
Clear Click Clear to reset the fields to the factory defaults.
Index This is a read-only number identifying a login account on the Switch. Click on an index
number to view more details and edit an existing account.
Username This field displays the username of a login account on the Switch.
Security Level This field displays whether you want to implement authentication and/or encryption for
SNMP communication with this user.
Authentication This field displays the authentication algorithm used for SNMP communication with this
user.
Privacy This field displays the encryption method used for SNMP communication with this user.
Group This field displays the SNMP group to which this user belongs.
Delete Click Delete to remove the selected entry from the summary table.
Cancel Click Cancel to begin configuring this screen afresh.
Table 137
Management > Access Control > SNMP > User (continued)
LABEL DESCRIPTION