This chapter explains how to configure DHCP IPv4 and IPv6 properties. It contains the following sections:

• • 22282761
  • Configuring IPv4 DHCP Properties
  • Configuring General IPv4 DHCP Properties
    • Specifying Authoritative
    • Defining Lease Times
    • Configuring General IPv4 Properties
    • Configuring Fixed Addresses without Restarting DHCP Service
  • Configuring Ping Settings
  • Configuring DHCP Lease Management
  • Ignoring DHCP Client Identifiers
  • Configuring IPv4 BOOTP and PXE Properties
  • About IPv4 DHCP Options
    • DHCP Option Data Types
    • Configuring IPv4 DHCP Options
    • Defining IPv4 DHCP Options
    • Defining IPv4 Option Spaces
    • Configuring Custom DHCP Options
    • Applying DHCP Options
    • Configuration Example: Defining a Custom Option
    • Defining Option 60 Match Rules
    • About the DHCP Relay Agent Option (Option 82)
  • Configuring Thresholds for DHCP Ranges
  • Configuring DHCPv6 Properties
    • Defining General IPv6 Properties
  • About DHCPv6 Options
    • Configuring DHCPv6 Options
    • Defining IPv6 Option Spaces
    • Configuring Custom IPv6 DHCP Options
    • Applying DHCPv6 Options
  • Configuring DHCP IPv4 and IPv6 Common Properties
    • Configuring UTF-8 Encoding for Hostnames
    • Associating Networks with Zones
    • Keeping Leases in Deleted IPv4 and IPv6 Networks and Ranges
    • Configuring Fixed Address Leases For Display
    • Scavenging Leases
    • DHCPv6 Lease Affinity
  • Configuring DHCP Logging
    • Configuring the Lease Logging Member
  • About IF-MAP
    • Configuring a Grid to Support IF-MAP
    • Validating the IF-MAP Server Certificate
    • Configuring Members as IF-MAP Clients
    • Creating IF-MAP Client Certificates
    • Overriding IF-MAP Publishing Settings
    • Deleting Data from the IF-MAP Server
  • Starting DHCP Services on a Member
  • Viewing DHCP Member Status
    • Viewing DHCP Configuration Files

About DHCP Properties

When you configure a NIOS appliance to function as a DHCP server, you can set DHCP properties that control how the appliance operates and enable DHCP service for IPv4 and IPv6.
You can also specify configuration information the appliance includes in its IPv4 and IPv6 DHCP messages. When a DHCP server assigns an IP address to a client, it can include information the client needs to connect to the network and communicate with other hosts and devices on the network. You can set these properties at the Grid level and override them for a member, network, shared network, DHCP range, fixed address, IPv4 reservation, host address, or roaming host.
When you configure a DHCP object that has inherited DHCP properties, you can either keep the inherited properties or override them. The appliance displays the inherited values and the levels from which the DHCP properties are inherited. For information, see About DHCP Inheritance.