Administrator Guide
DHCP <POOL> mode
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After an IP address is leased to a client, only that client may release the address. Dell Networking OS performs an IP + MAC source address
validation to ensure that no client can release another clients address. This validation is a default behavior and is separate from IP+MAC
source address validation.
Excluding Addresses from the Address Pool
The DHCP server assumes that all IP addresses in a DHCP address pool are available for assigning to DHCP clients.
Specify the IP address that the DHCP server should not assign to clients.
To exclude an address, follow this step.
• Exclude an address range from DHCP assignment. The exclusion applies to all congured pools.
DHCP mode
excluded-address
Specifying an Address Lease Time
To specify an address lease time, use the following command.
• Specify an address lease time for the addresses in a pool.
DHCP <POOL>
lease {days [hours] [minutes] | infinite}
The default is 24 hours.
Specifying a Default Gateway
The IP address of the default router should be on the same subnet as the client.
To specify a default gateway, follow this step.
• Specify default gateway(s) for the clients on the subnet, in order of preference.
DHCP <POOL>
default-router address
Enabling the DHCP Server
To set up the DHCP Server, you must rst enable it.
The DHCP server is disabled by default.
1 Enter the DHCP command-line context.
CONFIGURATION mode
ip dhcp server
2 Enable DHCP server.
DHCP mode
no disable
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Dynamic Host Conguration Protocol (DHCP)