HP Q.11.XX Manual page 302

Using Authorized IP Managers
Defining Authorized Management Stations
Omitting a mask in the ip authorized-managers command results in a default mask of 255.255.255.255, which authorizes
only the specified station. Refer to "Configuring Multiple Stations Per Authorized Manager IP Entry" on page 10-10.
Figure 10-4. Example of Specifying an IP Authorized Manager with the Default Mask
10-8
Similarly, the next command authorizes manager-level access for any station
having an IP address of 10.28.227.101 through 103:
ProCurve(config)# ip authorized-managers 10.28.227.101
255.255.255.252 access manager
If you omit the <mask bits> when adding a new authorized manager, the switch
automatically uses 255.255.255.255 for the mask. If you do not specify either
Manager or Operator access, the switch automatically assigns the Manager
access. For example:
To Edit an Existing Manager Access Entry. To change the mask or
access level for an existing entry, use the entry's IP address and enter the new
value(s). (Notice that any parameters not included in the command will be set
to their default.):
ProCurve(config)# ip authorized-managers
10.28.227.101 255.255.255.0 access operator
The above command replaces the existing mask and access level for IP
address 10.28.227.101 with 255.255.255.0 and operator.
The following command replaces the existing mask and access level for IP
address 10.28.227.101 with 255.255.255.255 and manager (the
defaults) because the command does not specify either of these parameters.
ProCurve(config)# ip authorized-managers 10.28.227.101
To Delete an Authorized Manager Entry. This command uses the IP
address of the authorized manager you want to delete:
ProCurve(config)# no ip authorized-managers 10.28.227.101