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CHAPTER
18-1
Cisco ASA 5500 Series Configuration Guide using ASDM
18
Configuring DHCP
This chapter describes how to configure the DHCP server and includes the following sections:
• Information About DHCP, page 18-1
• Licensing Requirements for DHCP, page 18-1
• Guidelines and Limitations, page 18-2
• Configuring DHCP Relay Services, page 18-2
• Configuring a DHCP Server, page 18-5
• DHCP Monitoring, page 18-8
• Feature History for DHCP, page 18-9
Information About DHCP
DHCP provides network configuration parameters, such as IP addresses, to DHCP clients. The ASA can
provide a DHCP server or DHCP relay services to DHCP clients attached to ASA interfaces. The DHCP
server provides network configuration parameters directly to DHCP clients. DHCP relay passes DHCP
requests received on one interface to an external DHCP server located behind a different interface.
Licensing Requirements for DHCP
Table 18-1 shows the licensing requirements for DHCP.
Table 18-1 Licensing Requirements
For the ASA 5505, the maximum number of DHCP client addresses varies depending on the license:
• If the limit is 10 hosts, the maximum available DHCP pool is 32 addresses.
• If the limit is 50 hosts, the maximum available DHCP pool is 128 addresses.
• If the number of hosts is unlimited, the maximum available DHCP pool is 256 addresses.
Model License Requirement
All models Base License.