Supermicro SSE-G24-TG4 Configuration Manual page 18

The default route IP address should be on the same subnet as the client. When a DHCP client requests
an IP address, the DHCP server accesses the default router list to select another router that the DHCP
client is to use as the first hop for forwarding messages.
1.6.1.3 Excluding IP Addresses
By default, the DHCP Server assumes all IP addresses in the configured DHCP address pool are available
for assigning to DHCP clients. If a particular address or range of addresses should not be assigned to
DHCP clients, users can configure these as excluded IP addresses.
1.6.1.4 Utilization Threshold
A DHCP address pool has a threshold associated with it. If a pool's outstanding addresses exceed the
high utilization threshold and SNMP trap signaling is enabled, SNMP is notified.
1.6.1.5 Lease
DHCP supports three mechanisms for IP address allocation:
• Automatic allocation: the DHCP server assigns a permanent IP address to a client.
• Dynamic allocation: the DHCP server assigns an IP address to a client from the address pool for either a
limited period of time called a lease or until the client relinquishes the address.
• Manual allocation: the network administrator assigns an IP address to a client and DHCP is used simply
to convey the assigned address to the client.
1.6.1.6 Options and Sub-options
Configuration parameters and control information are available inthe options field of the DHCP
message. This can be used when additional information need not be stored in DHCP client, rather it can
be transmitted by the DHCP server to the client.
Some DHCP clients send a client identifier (DHCP option 61) in the DHCP packet to the DHCP server.
Configuring manual bindings for such clients is done in the client-identifier DHCP pool configuration. To
configure manual bindings for clients who do not send a client identifier option, configure the hardware-
address DHCP pool configuration.
1.6.1.7 Boot File
The boot file is used to store the boot image for the client. The boot image is generally the operating
system the Dynamic Host Configuration Protocol (DHCP)client uses to load.
1.6.1.8 DHCP Ping
The DHCP server pings a pool address twice before assigning a particular address to a requesting client.
If the ping is unanswered, the DHCP server assumes that the address is not in use and assigns the
address to the requesting client.
1.6.1.9 DHCP Server Configuration
Defaults
Parameter
DHCP server status
DHCP server IP address
Default Value
Disabled
None
Supermicro L2/L3 Switches Configuration Guide 18