Configuring DHCP on AOS-S Switches

Dynamic Host Configuration Protocol (DHCP Dynamic Host Configuration Protocol. A network protocol that enables a server to automatically assign an IP address to an IP-enabled device from a defined range of numbers configured for a given network. ) is a protocol that enables a server to automatically assign IP addresses to hosts. The server uses the configured IP address pools or ranges to assign to hosts. You can configure multiple IP pools to not have duplicate or overlapping IP subnets Subnet is the logical division of an IP network.. You can configure the IP address pools with various options to share with the hosts. For example, network address, subnet mask, DNS Domain Name System. A DNS server functions as a phone book for the intranet and Internet users. It converts human-readable computer host names into IP addresses and IP addresses into host names. It stores several records for a domain name such as an address 'A' record, name server (NS), and mail exchanger (MX) records. The Address 'A' record is the most important record that is stored in a DNS server, because it provides the required IP address for a network peripheral or element. server address.

To enable the DHCP service and to add DHCP pools on a switch, complete the following steps:

  1. In the Aruba Central app, select one of the following options:
    • To select a switch group in the filter:
      1. Set the filter to a group containing at least one switch.

        The dashboard context for the group is displayed.

      2. Under Manage, click Devices > Switches.
      3. Click the AOS-S Config or Config icon to view the switch configuration dashboard.
    • To select a switch in the filter:
      1. Set the filter to Global or a group containing at least one switch.
      2. Under Manage, click Devices > Switches.

        A list of switches is displayed in the List view.

      3. Click a switch under Device Name.

        The dashboard context for the switch is displayed.

      4. Under Manage, click Device.

        The tabs to configure the switch is displayed.

  2. Click System > DHCP. The DHCP page is displayed.

    Aruba 2530 Switch Series do not support DHCP server on the device platform. Hence, Aruba Central pushes the group-level configuration for DHCP to all applicable devices in the group except the Aruba 2530 Switch Series.
    If any of the devices is running a lower version, a warning message is displayed, and the DHCP configuration changes are pushed only to the devices that support the DHCP. If the devices are upgraded to a supported version or moved out of the group, the warning message will not be displayed.

  3. To activate the DHCP service, move the DHCP Server toggle switch to the on position.

    The DHCP service can be enabled only if there is a valid DHCP pool.

  4. To add a new DHCP pool, click + in the DHCP Pools table and configure the following parameters:

    Table 1: Configuring a DHCP Pool





    Name of the pool.

    A string.


    A valid network IP address to assigned to the DHCP pool.

    IPv4 address.


    Netmask of the DHCP pool.

    Subnet mask.

    Lease Time

    The lease time for the DHCP pool in days-hours-minutes format.

    You can set a maximum value of 365 days 23 hours and 59 minutes in the DD-HH-MM format.

    Default Router

    IP address of the default router in the subnet.

    You can add up to 8 IP addresses.

    DNS Server

    Address of the DNS server. To add multiple DNS servers, click +.

    You can add up to 8 DNS servers.

    Netbios Server

    Address of the Netbios server. To add multiple Netbios servers, click +.

    You can add up to 8 Netbios servers.

    IP Address Range

    IP address range within the network and network mask combination. To add multiple IP address range, click +.

    You can add up to 64 IP address range.


    The code type, and ASCII American Standard Code for Information Interchange. An ASCII code is a numerical representation of a character or an action. or HEX value of the DHCP option to configure. To add multiple options, click +.

    You can add up to 8 options.

    A value within the range of 2-254 with type as hexadecimal and ASCII is valid.

  5. Click Ok.
  6. Click Save Settings.
  7. To edit the details of a DHCP pool, hover over the row for the DHCP pool and click the edit icon in the Edit column.
  8. To delete a DHCP pool, hover over the row for the DHCP pool and click the delete icon in the Delete column. Click Yes in the confirmation window.