ProCurve 2900 Manual page 406

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 11-11.
Figure 11-4. Example of Specifying an IP Authorized Manager with the Default Mask
11-8
If you omit the < mask bits > when adding a new authorized manager, the switch
automatically uses 255.255.255.255. If you do not specify either Manager or
Operator access, the switch 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