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Bring performance and reliability to your network with the Aruba Core, Aggregation, and Access layer switches. Discuss the latest features and functionality of the ArubaOS-Switch and ArubaOS-CX devices, and find ways to improve security across your network to bring together a mobile first solution.
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ARP and DHCP Inspection on UBT Mode

This thread has been viewed 18 times
  • 1.  ARP and DHCP Inspection on UBT Mode

    Posted Jan 17, 2022 06:29 AM
    Hi,

    Trying to implement DHCP and ARP snooping on AOS switches with UBT mode on. Will enabling these features on Tunnel-Reserved-Vlan on access switches be enough for all UBT vlans that reside on the core side?

    Thanks,
    Pavan.

    ------------------------------
    Pavan Kumar Potru
    ------------------------------


  • 2.  RE: ARP and DHCP Inspection on UBT Mode

    EMPLOYEE
    Posted Jan 18, 2022 05:27 AM
    I would think you should enable those features on the controller/gateway, as with UBT all traffic is handled there.

    ------------------------------
    Herman Robers
    ------------------------
    If you have urgent issues, always contact your Aruba partner, distributor, or Aruba TAC Support. Check https://www.arubanetworks.com/support-services/contact-support/ for how to contact Aruba TAC. Any opinions expressed here are solely my own and not necessarily that of Hewlett Packard Enterprise or Aruba Networks.

    In case your problem is solved, please invest the time to post a follow-up with the information on how you solved it. Others can benefit from that.
    ------------------------------



  • 3.  RE: ARP and DHCP Inspection on UBT Mode

    Posted Jan 18, 2022 06:05 AM
    Thanks Herman.

    If we have to apply on both switch (Customer's security requirement) and controller,
    On switch - trusting uplink port and Tunnel-Reserved-Vlan be enough ?
    On Controller - Will configure as normal. Uplink trunk and uplink vlans as trust.

    ------------------------------
    Pavan Potru
    ------------------------------



  • 4.  RE: ARP and DHCP Inspection on UBT Mode

    EMPLOYEE
    Posted Jan 21, 2022 02:53 AM
    I would not know... probably the best is to check with TAC, or just test it. Not sure if it is supported.

    ------------------------------
    Herman Robers
    ------------------------
    If you have urgent issues, always contact your Aruba partner, distributor, or Aruba TAC Support. Check https://www.arubanetworks.com/support-services/contact-support/ for how to contact Aruba TAC. Any opinions expressed here are solely my own and not necessarily that of Hewlett Packard Enterprise or Aruba Networks.

    In case your problem is solved, please invest the time to post a follow-up with the information on how you solved it. Others can benefit from that.
    ------------------------------



  • 5.  RE: ARP and DHCP Inspection on UBT Mode

    Posted Jan 21, 2022 04:46 AM
    Thanks Herman. Logged a call with TAC.

    ------------------------------
    Pavan Kumar Potru
    ------------------------------



  • 6.  RE: ARP and DHCP Inspection on UBT Mode

    Posted Jan 28, 2022 07:27 AM
    Is it working in UBT Mode ?