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User Guide for Cisco Security Manager 4.4
OL-28826-01
Chapter 51 Configuring Server Access Settings on Firewall Devices
Configuring DHCP Servers
Field Reference
Add/Edit DHCP Server Advanced Configuration Dialog Box
The Add/Edit DHCP Server Advanced Configuration dialog box lets you manage DHCP options
configured for the DHCP server. These options provide additional information to DHCP clients. For
example, DHCP option 150 and DHCP option 66 provide TFTP server information to Cisco IP Phones
and Cisco IOS routers.
Navigation Path
You can access the Add/Edit DHCP Server Advanced Configuration dialog box by clicking the
Advanced button on the DHCP Server Page, page 51-10.
Related Topics
• Configuring DHCP Servers, page 51-9
Field Reference
Table 51-10 Add/Edit DHCP Server Interface Configuration Dialog Boxes
Element Description
Interface Identifies the interface on which you are configuring a DHCP server.
Enter an interface name, or select an interface object.
DHCP Address Pool Enter an IP address or a range of addresses, separated by a hyphen, that
the DHCP server will use when assigning IP addresses. The beginning
and ending addresses in the range must be in the same subnet, and the
beginning address cannot be greater than the ending address.
Enable DHCP Server Check this box to enable a DHCP server on this interface.
Enable Dynamic DNS
Update
Check this box to enable DDNS updating by this DHCP server. Specify
the record(s) to be updated:
• PTR Record only
• A Record and PTR Record
You also can select Override DHCP Client Request. If selected,
DHCP server updates override any updates requested by DHCP clients.
Table 51-11 Add/Edit DHCP Server Advanced Configuration Dialog Box
Element Description
Options table This table lists configured DHCP server options. Use the Add Row,
Edit Row, and Delete Row buttons to manage these entries.
The Add Row button opens the Add DHCP Server Interface
Configuration dialog box, while Edit Row opens the Edit DHCP Server
Interface Configuration dialog box. See Add/Edit DHCP Server Option
Dialog Box, page 51-13 for more information.