Concept Guide
Conguring the Server for Automatic Address Allocation
Automatic address allocation is an address assignment method by which the DHCP server leases an IP address to a client from a pool of
available addresses.
An address pool is a range of IP addresses that the DHCP server may assign. The subnet number indexes the address pools.
To create an address pool, follow these steps.
1 Access the DHCP server CLI context.
CONFIGURATION mode
ip dhcp server
2 Create an address pool and give it a name.
DHCP mode
pool name
3 Specify the range of IP addresses from which the DHCP server may assign addresses.
DHCP <POOL> mode
network network/prefix-length
• network: the subnet address.
• prefix-length: species the number of bits used for the network portion of the address you specify.
The prex-length range is from 17 to 31.
4 Display the current pool conguration.
DHCP <POOL> mode
show config
After an IP address is leased to a client, only that client may release the address. Dell EMC Networking OS performs a 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.
Conguration Tasks
To congure DHCP, an administrator must rst set up a DHCP server and provide it with conguration parameters and policy information
including IP address ranges, lease length specications, and conguration data that DHCP hosts need.
Conguring the Dell system to be a DHCP server is a three-step process:
1 Conguring the Server for Automatic Address Allocation
2 Specifying a Default Gateway
Related Conguration Tasks
• Congure a Method of Hostname Resolution
• Creating Manual Binding Entries
• Debugging the DHCP Server
• Using DHCP Clear Commands
320
Dynamic Host Conguration Protocol (DHCP)