ZyXEL ES3500-24HP User Guide - Page 304

Chapter 39 Access Control The following table describes the labels in this screen. Table 134 Management > Access Control > SNMP > User LABEL DESCRIPTION User Information Note: Use the username and password of the login accounts you specify in this screen to create accounts on the SNMP v3 manager. Username Security Level Specify the username of a login account on the Switch. Select whether you want to implement authentication and/or encryption for SNMP communication from this user. Choose: • noauth -to use the username as the password string to send to the SNMP manager. This is equivalent to the Get, Set and Trap Community in SNMP v2c. This is the lowest security level. • auth - to implement an authentication algorithm for SNMP messages sent by this user. • priv - to implement authentication and encryption for SNMP messages sent by this user. This is the highest security level. Authentication Password Privacy Password Group Add Cancel Clear Index Username Security Level Authenticati on Privacy Note: The settings on the SNMP manager must be set at the same security level or higher than the security level settings on the Switch. 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. Enter the password of up to 32 ASCII characters for SNMP user authentication. 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. Enter the password of up to 32 ASCII characters for encrypting SNMP packets. 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. 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. Click Cancel to reset the fields to your previous configuration. Click Clear to reset the fields to the factory defaults. 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. This field displays the username of a login account on the Switch. This field displays whether you want to implement authentication and/or encryption for SNMP communication with this user. This field displays the authentication algorithm used for SNMP communication with this user. This field displays the encryption method used for SNMP communication with this user. 304 ES3500 Series User's Guide