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Cisco Router and Security Device Manager Version 2.2 User’s Guide
OL-4015-08
Chapter23 Router Properties
DHCP Configuration
Subnet Mask
Enter the subnet mask. The subnet mask of the example network address could be
255.255.255.0, providing 255 IP addresses.

DHCP Pool

Enter the starting and ending IP addresses in the range. The starting address based
on the example network number would be 192.168.233.1. The ending address
would be 192.168.233.254.

Lease Length

Enter the amount of time that addresses are to be leased t o clients. You can specify
that leased addresses never expire, or you can specify the lease time in days,
hours, and minutes. You cannot specify more than 365 days, more than 23 hours,
or more than 59 minutes.

DHCP Options

Enter information for DNS server, WINS servers, the domain name, and the
default router in the DHCP options fields. These values will be sent to the DHCP
clients when they request an IP address.
Import all DHCP Options into the DHCP server database
Click this option if you want to import DHCP option parameters to the DHCP
server database and also send this information to DHCP clients on the LAN when
they request IP addresses.
DHCP Bindings
This window shows existing manual DHCP bindings. A manual DHCP binding
allows you to allocate the same IP address to a specific client each time the client
requests an IP address from the available DHCP pools.
You can also add new bindings, edit existing bindings, or delete existing bindings.

Binding Name

The name assigned to the DHCP binding.