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Dell EMC Configuration Guide for the S3100 Series 9.14.2.4

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Configuring 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: specifies the number of bits used for the network portion of the address you specify.
    The prefix-length range is from 17 to 31.
  4. Display the current pool configuration.
    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.

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