Copyright © 1997 by International Business Machines Corporation
IBM DHCP Server Configuration Program Help
The DHCP Server Configuration window enables you to add,
modify, delete, or view configuration information for your DHCP server. The
items in the configuration are displayed in two panes:
- A Current Configuration pane, on the left of the display. Configuration
items are arranged in a hierarchy that you can expand or collapse.
- An Additional Information pane, on the right of the display. Additional
information includes related options for some views and other information
about an item highlighted in the Current Configuration pane.
A banner at the bottom of the window provides a brief summary of
information for an item. The banner also displays status information about
major operations, such as loading or saving a file.
To open a notebook to view or modify an item in the current configuration,
double-click the item.
The menu bar has these choices:
Use the File pull-down menu to create a new configuration file, open an
existing file, or load a sample file. You can also copy a file by saving it
with a different name, or exit the program.
Note:
The DHCP Server Configuration program provides a default file type of CFG for
all configuration files.
The file menu contains:
- New
- Start a new configuration file.
Note:
If you click New while you are currently editing an existing configuration
file, the DHCP Server Configuration program prompts you to save your current
work.
- Open
- Open an existing configuration file. Configuration files are stored by
default in the directory specified by the ETC environment variable. If the
configuration file is saved in another directory, it cannot be used by the
DHCP server until it is moved to the ETC directory.
- Load Sample
- Load a sample configuration file, which contains an instance of every type
of configurable object. You can use the sample as a starting point for your
own configuration.
- Save
- Save the current file, using the existing file name. The configuration
remains open, available for additional changes. If the configuration file is
not saved in the directory specified by the ETC environment variable, it
cannot be used by the DHCP server until it is moved to the ETC directory.
- Save As...
- Save the current file, prompting for a file name. The configuration
remains open, available for additional changes. If the configuration file is
not saved in the directory specified by the ETC environment variable, it
cannot be used by the DHCP server until it is moved to the ETC directory.
- Exit
- Exit the DHCP server configuration program. You are prompted to save work
in progress.
Use the Edit pull-down menu to find configuration items and also to delete,
cut, copy, and paste configuration items. Items on the pull-down are active or
grayed, depending on the whether the action is available for the item selected
in the configuration.
The edit menu contains:
- Find
- Find the target string. For example, enter the IP address of a subnet.
- Cut
- Copy the selected configuration item to the clipboard, graying the item in
the current view. Subordinate items are included in the cut. Pasting the cut
item moves the item to the paste location.
Note:
If you cut an item and immediately cut or copy a second item without pasting
the first item, the clipboard content is not discarded; the DHCP Server
Configuration program returns the previously-cut item to an active state in
the view.
- Copy Item
- Copy the selected configuration item to the clipboard. Items subordinate
to the selected item are not copied.
- Copy Tree
- Copy to the clipboard the selected configuration item and all items
defined within its scope.
- Paste After
- If appropriate to the target destination, paste the clipboard content at
the same level, after the currently-selected item. The copied item remains on
the clipboard so you can paste it again.
- Paste Within
- If appropriate to the target destination, paste the clipboard content as a
subordinate item within the currently-selected item. For example, paste a
class within a subnet. The copied item remains on the clipboard so you can
paste it again.
- Delete
- Delete an item AND all other items defined within the scope of
the item.
Attention: A delete action cannot be undone.
Use the Configure pull-down menu to open a notebook to add or modify
configuration items. Items on the pull-down are active or grayed, depending on
the whether the action is available for the item selected in the
configuration. For example, because a class can be added only at a global or
subnet level, Add Class is active when a global or subnet item is selected in
the configuration.
Note:
Only one notebook can be open at any time.
The configure menu contains:
- Modify Selected Item
- Modify the currently-selected item. This is equivalent to double-clicking
the item. This menu item displays the appropriate notebook for the selected
configuration item.
- Add Subnet
- Add a subnet. Add Subnet is active if a global item is selected in the
configuration.
The Subnet item specifies configuration parameters for an address pool
administered by a server. An address pool is a range of IP addresses to be
leased to clients.
- Add Class
- Add a class.
The Class item specifies configuration parameters for a user-defined group
of clients that identify themselves as belonging to a named class administered
by a server. Classes can be specified at global and subnet levels. For
example, define a class called "fastprt" for clients that require the use of a
high-speed printer.
- Add Client
- Add a client. The DHCP server provides a specific address, lease, and
other configuration parameters, or DHCP configuration parameters only to a
specific client that identifies itself to the server with an identifier such
as a MAC address.
Clients can be specified at global or subnet levels.
- Add Vendor Options
- Add a vendor and vendor options. For more information on vendor options,
see
DHCP Server Administration.
- Add Comment
- Add a comment.
- Add Subnet Group
- Define a group of subnets that share the same physical network. Subnet
groups can be defined only at a global level.
- Exclude Client
- Exclude a client uniquely identified by a MAC address from service by the
DHCP server. Clients can be excluded at global and subnet levels.
Use the View pull-down menu to display the configuration in a
variety of ways, making it easier to navigate within large configurations to
find specific items. The View pull-down enables you to quickly move between a
complete view of the configuration and a subset view. For example, you can
filter the configuration to display views of only subnets, subnet groups,
classes, or clients.
The view menu contains:
- Main View
- Display all configuration items.
- Expand All
- Expand all branches of the main view.
- Collapse All
- Collapse all branches of the main view.
- Subnet View
- Display a list of subnets defined in the configuration.
- Class View
- Display a list of classes defined in the configuration.
- Client View
- Display a list of clients and excluded clients defined in the
configuration.
- Subnet Group View
- Display only the subnet groups and their subordinate subnets defined in
the configuration.
- Option View
- Display all options defined in the configuration. Click a specific option
to see a cross-reference of all the items that specify or inherit the option,
displayed in the Additional Information pane.
- View Entire File
- Display the entire (read-only) configuration file in text format. This is
the same text that would be stored in a configuration file if the file were
saved at this point in your work session.
- View File Item with Entire Scope
- For an item highlighted in the configuration, display the (read-only)
statement defining the item in the configuration file and any items within its
scope.
- View File Item Alone
- For an item highlighted in the configuration, display only the (read-only)
statement defining the item in the configuration file.
- Item on Clipboard
- Display the content of the clipboard
Use the Help pull-down menu to view help information for this
program.
The help menu contains:
- Contents
- Displays the help table of contents
- General Help
- Provides help for the DHCP Server Configuration window.
- Getting Started
- Introduces a brief overview of the program
- How Do I
- Describes basic tasks to use the program
- Product Information
- Describes the product version and copyright
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