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ArubaOS 8 Clustering - DHCP Server?

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  • 1.  ArubaOS 8 Clustering - DHCP Server?

    Posted May 07, 2020 08:42 PM

    Does anyone know what options are available for client network DHCP with an ArubaOS 8 cluster?

    The documentation is a bit light on whether we can configure a DHCP server (say for guest users) and how this will be handled with a cluster.

     

    Is DHCP relay an option when using Clustering?



  • 2.  RE: ArubaOS 8 Clustering - DHCP Server?
    Best Answer

    EMPLOYEE
    Posted May 07, 2020 08:44 PM

    With a cluster, you should 100% bridge user traffic to the switching infrastructure and let the infrastructure provide dhcp.



  • 3.  RE: ArubaOS 8 Clustering - DHCP Server?

    Posted May 07, 2020 08:47 PM

    Thanks, thought this may be the case

     

    This is slightly more of a challenge for guest type networks that use a firewall cluster for next hop, but not impossible.



  • 4.  RE: ArubaOS 8 Clustering - DHCP Server?

    EMPLOYEE
    Posted May 07, 2020 09:18 PM

    Have all controllers bridge that traffic to the firewall's guest VLAN.  Have the firewall NAT the traffic on that VLAN.  Done.



  • 5.  RE: ArubaOS 8 Clustering - DHCP Server?

    Posted May 07, 2020 09:23 PM

    Yep, the clients would still need to get an IP address from somewhere though.

     

    A firewall cluster would need to be configured to perform DHCP relay, which is not always desirable from a customer's perspective.



  • 6.  RE: ArubaOS 8 Clustering - DHCP Server?

    EMPLOYEE
    Posted May 07, 2020 09:26 PM

    The customer should always design within the confines of the products that they select.  If a customer's infrastructure has no way to provide DHCP and natting for a VLAN on a cluster, maybe they only need a single controller and not a cluster.