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13-2
Cisco Unified Communications Manager Administration Guide
OL-18611-01
Chapter 13 DHCP Subnet Configuration
Finding a DHCP Subnet
Finding a DHCP Subnet
Use the following procedure to locate DHCP subnets.
Note During your work in a browser session, the cookies on the client machine store your find/list search
preferences. If you navigate to other menu items and return to this menu item, or if you close the browser
and then reopen a new browser window, the system retains your Cisco Unified Communications
Manager search preferences retained until you modify your search.
Procedure
Step 1 Choose System > DHCP > DHCP Subnet.
The Find and List DHCP Subnets window displays.
Step 2 To find all records in the database, ensure the dialog box is empty; go to Step 3.
Domain Name This field specifies the name that you should use when resolving
hostname via the Domain Name System.
Primary DNS IPv4 Address This field specifies primary DNS IPv4 server name.
Secondary DNS IPv4
Address
This field specifies secondary DNS IPv4 server name.
TFTP Server Name (Option
66)
Use this field to identify a TFTP server. You can configure only one
DNS name or a dotted decimal IP address in this parameter.
Primary TFTP Server IPv4
Address (Option 150)
This field specifies the IPv4 addresses for primary Trivial File Transfer
Protocol (TFTP) server.
Secondary TFTP Server
IPv4 Address (Option 150)
This field specifies the IPv4 addresses for secondary TFTP server.
Bootstrap Server IPv4
Address
This field specifies the address of the server that is used in the next step
of the bootstrap process. You can use this as the IPv4 address of the
TFTP server or as the default value to DHCP server address if the server
is to supply the next bootstrap service.
ARP Cache Timeout (sec) This field specifies the timeout in seconds for ARP cache entries.
Specify the time as a 32-bit unsigned integer.
IP Address Lease Time (sec) The DHCP server uses the information in this field to specify the lease
time that it is willing to offer. Specify the time in units of seconds and
as a 32-bit unsigned integer.
Renewal (T1) Time (sec) This field specifies the time interval from address assignment until the
client transitions to the RENEWING state.
Rebinding (T2) Time (sec) This field specifies the time interval from address assignment until the
client transitions to the REBINDING state. Specify the value in units of
seconds and as a 32-bit unsigned integer.
Table 13-1 DHCP Subnet Configuration Settings (continued)
Server Information Field Description