Configuring System Information 183• Authentication Key (MD5-16; SHA-20 hexa chars) — Defines the HMAC-MD5-96 or HMAC-SHA-96 authentication level. The authentication and privacy keys are entered to define the authentication key.If only authentication is required, 16 bytes are defined for MD5. If both privacy and authentication arerequired, 32 bytes are defined for MD5. Each byte in hexadecimal character strings is two hexadecimaldigits. Each byte can be separated by a period or a colon.• Privacy Key (16 hexa characters) — If only authentication is required, 20 bytes are defined. If bothprivacy and authentication are required, 16 bytes are defined. Each byte in hexadecimal character stringsis two hexadecimal digits. Each byte can be separated by a period or colon.• Remove — When checked, removes users from a specified group.Adding Users to a Group1 Open the User Security Model page.2 Click Add.The Add User Name page opens:Figure 6-79. Add SNMPv3 User Name3 Define the relevant fields.4 Click Apply Changes.The user is added to the group, and the device is updated.Displaying the User Security Model Table1 Open the User Security Model (USM) page.2 Click Show All.The User Security Model Table opens:
