Table 51: DHCP Pool Summary Fields (continued)
Field
Description
Host Mask
(Manual pools only) The subnet mask to offer the client.
Lease Expiration Mode
Whether the information the server provides to the client should expire. The options
are:
•
Enable – Allows the lease to expire. If you select this option, you can specify the
amount of time the lease is valid in the
Lease Duration
field.
•
Disable – Sets an infinite lease time. For dynamic bindings, an infinite lease time
implies a lease period of 60 days. For a manual binding, an infinite lease period
never expires.
Lease Duration
The number of Days, Hours, and Minutes the lease is valid. This field cannot be
configured if the
Lease Expiration Mode
is disabled.
Default Router Address
(optional)
The IP address of the router to which the client should send traffic. The default router
should be in the same subnet as the client. To add additional default routers, use the
DHCP Server Pool Configuration page.
DNS Server Address
(optional)
The IP addresses of up to two DNS servers the client should use to resolve host
names into IP addresses. To add additional DNS servers, use the DHCP Server Pool
Configuration page.
If you change any of the parameters, click
Submit
to apply the changes to the system. If you want the
switch to retain the new values across a power cycle, you must save the configuration.
Pool Configuration
Use the DHCP Pool Configuration page to edit pool settings or to configure additional settings for
existing manual and dynamic pools. The fields that can be configured depend on the type of binding
that is selected.
To access this page, click
System
>
Advanced Configuration
>
DHCP Server
>
Pool Configuration
in
the navigation menu.
If you select
Automatic
or
Manual
from the
Type of Binding
drop-down menu, the screen refreshes and
a slightly different set of fields appears.
Table 52: DHCP Pool Configuration Fields
Field
Description
Pool Name
For a user with read/write permission, this field would show names of all the existing
pools along with an additional option Create. When the user selects Create, another
text box, Pool Name, appears where the user may enter name for the Pool to be
created. For a user with read-only permission, this field would show names of the
existing pools only.
Type of Binding
Specifies the type of binding for the pool.
•
Unallocated: The addresses are not assigned to a client.
•
Automatic: The IP address is automatically assigned to a client by the DHCP
server.
•
Manual: You statically assign an IP address to a client based on the client’s MAC
address.
Configuring System Information
ExtremeSwitching 200 Series: Administration Guide
76
