# Define a DHCP Server

A DHCP Server dynamically assigns IP addresses.

##

For more details about the product and how to configure features, click Help or press F1.

## Steps

1. Select Configuration, then browse to Network Elements.
2. Browse to Servers.
3. Right-click Servers, then select New > DHCP Server.
4. In the Name field, enter a unique name.
5. Add one or more IP addresses.
   You can add both an IPv4 and an IPv6 address to the same DHCP Server element.
6. If there is a NAT device between a firewall and the server so that the firewall cannot connect directly to the IP address defined for the interface, select a location and add a contact address.
   Note: Contact addresses are only supported for IPv4 addresses.
7. Click OK.

## DHCP Server Properties dialog box

Use this dialog box to define Dynamic Host Configuration Protocol (DHCP) Server properties.

Option | Definition
--- | ---
General tab
Name | The name of the element.
IPv4 Address | The IPv4 address of the server. Click Resolve to automatically resolve the IP address of the server. You can enter both an IPv4 and an IPv6 address.
IPv6 Address | The IPv6 address of the server. You can enter both an IPv4 and an IPv6 address.
Location | Specifies the location for the server if there is a NAT device between the server and other SMC components.
Contact Addresses (Only IPv4 addresses) | Default — Used by default whenever a component that belongs to another Location connects to this server. Exceptions — Opens the Exceptions dialog box.
Category (Optional) | Includes the element in predefined categories. Click Select to select a category.
Tools Profile | Adds commands to the right-click menu for the element. Click Select to select an element.
Comment (Optional) | A comment for your own reference.

Option | Definition
--- | ---
Monitoring tab
Log Server | The Log Server that monitors the status of the element.
Status Monitoring | When selected, activates status monitoring for the device. You must also select the Probing Profile that contains the definitions for the monitoring. When you select Status Monitoring, the element is added to the tree in the Home view.
Probing Profile | Shows the name of the selected Probing Profile. Click Select to select a Probing Profile element.
Log Reception | Activates syslog reception from this device. You must select the Logging Profile that contains the definitions for converting the syslog entries to SMC log entries. You must also select the Time Zone in which the device is located. By default, the local time zone of the computer you are using is selected.
Logging Profile | Shows the name of the selected Logging Profile. Click Select to select a Logging Profile element.
Time Zone | Selects the time zone for the logs.
Encoding | Selects the character set for log files.
SNMP Trap Reception | Enables the reception of SNMP traps from the third-party device.
NetFlow Reception | Enables the reception of NetFlow data from the third-party device. The supported versions are NetFlow v5, NetFlow v9, and IPFIX (NetFlow v10).

Option | Definition
--- | ---
NAT tab (All optional settings)
Firewall | Shows the selected firewall.
NAT Type | Shows the NAT translation type: Static or Dynamic.
Private IP Address | Shows the Private IP Address.
Public IP Address | Shows the defined Public IP Address.
Port Filter | Shows the selected Port Filters.
Comment | An optional comment for your own reference.
Add NAT Definition | Opens the NAT Definition Properties dialog box.
Edit NAT Definition | Opens the NAT Definition Properties dialog box for the selected definition.
Remove NAT Definition | Removes the selected NAT definition from the list.