SD-WAN

 View Only
last person joined: 7 days ago 

Forum to discuss HPE Aruba EdgeConnect SD-WAN and SD-Branch solutions. This includes SD-WAN Orchestration WAN edge network functions - routing, security, zone-based firewall, segmentation and WAN optimization, micro-branch solutions, best practics, and third-party integrations. All things SD-WAN!
Expand all | Collapse all

System IP address Loopback or VLAN4087

This thread has been viewed 16 times
  • 1.  System IP address Loopback or VLAN4087

    Posted 28 days ago

    I am still a little confused about the concept of the system IP address

    In it said to be important for Gateways and microbranches

    One thing I don't understand is that some documentation states that VLAN 4087 is reserved for this purpose while other airhead videos use a different VLAN for this, and you can also use a Loopback interface.

    Being familiar with Loopback and its purpose for many other vendors, why at all use VLAN 4087 or any other VLAN for that matter, and just use a Loopback interface? 

    Also would defining both a Loopback and a system IP be redundant?

    Thanks



    ------------------------------
    Martijn van Overbeek
    Architect, Netcraftsmen a BlueAlly Company
    ------------------------------


  • 2.  RE: System IP address Loopback or VLAN4087

    EMPLOYEE
    Posted 26 days ago

    you can use any VLAN ID as a system IP.

    You can also use loopback

    check the Aruba SD-Branch Fundamentals Guide



    ------------------------------
    If my post was useful accept solution and/or give kudos.
    Any opinions expressed here are solely my own and not necessarily that of HPE or Aruba.
    ------------------------------



  • 3.  RE: System IP address Loopback or VLAN4087

    Posted 24 days ago

    Hi Ariy-,

    thank you for responding, however it feels a little like an echo of my question. I understand I can use both. I guess I can draw the conclusion that the Aruba guides could benefit from simplification.  My conclusion is you can use any IP address and if you are used to using loopback addresses stay consistent with that. 
    is it true though is VLAN 4087 reserved on gateways?

    https://www.arubanetworks.com/techdocs/central/2.5.2/content/gateways/cfg/bgw-dev-system-page.htm



    ------------------------------
    Martijn van Overbeek
    Architect, Netcraftsmen a BlueAlly Company
    ------------------------------



  • 4.  RE: System IP address Loopback or VLAN4087

    EMPLOYEE
    Posted 23 days ago

    even the current Central doco states that.

    It is reserved for the guided BGW workflow to make it easier I suppose. But again you can use any interface.

    also for example If you use a VLAN pool for system-ip, it is basically dynamically creating loopback interface. 



    ------------------------------
    If my post was useful accept solution and/or give kudos.
    Any opinions expressed here are solely my own and not necessarily that of HPE or Aruba.
    ------------------------------