HP Ew2400 - JetDirect Print Server Administrator's Manual page 148

CAUTION
You may create the initial account by specifying the HMAC-MD5
authentication and CBC-DES data privacy encryption keys used by
your SNMP v3 management application.
CAUTION
ENWW
If you use HP Web Jetadmin to manage your
devices, you should use HP Web Jetadmin to
seamlessly configure SNMP v3 and other security
settings on the print server.
Using the embedded Web server to create the
SNMP v3 account will erase any existing SNMP v3
accounts. In addition, the SNMP v3 account
information will need to be implemented on the
SNMP management application.
You should disable Telnet and ensure secure
embedded Web communications through HTTPS is
enabled before creating the initial SNMP v3
account. This will help to prevent access or
interception of account information over a
connection that is not secure.
SNMP v1 and v2c agents can coexist with the SNMP
v3 agent. However, to fully secure SNMP access,
you should disable SNMP v1 and v2c.
Using the Embedded Web Server 148