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About Master-local deployment

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  • 1.  About Master-local deployment

    Posted Jun 13, 2017 11:32 PM

    In my network there are two controllers, their model is 7210, version 6.4, are connected with the core switch, two controllers were opened dhcp service, for Access Points assign the IP address, the two controllers have been deployed into The mater-local  network configuration is as follows


    Mater

    localip 10.10.100.249  ipsec aruba123
    !
    controller-ip 10.10.100.248
    !
    vlan 80
    name Controller Management
    ！
    vlan 393
    name Access Points Management
    ！
    vrrp 393
      vlan 393
      ip address 192.168.10.1
      priority 110
      preempt
      authentication password
      no shutdown
    !
    interface vlan 80
    ip address   10.10.100.248 255.255.0.0
    !
    interface vlan 393
     ip address: 192.168.10.1 255.255.254.0
    !
     service dhcp
    ！
     ip dhcp pool vlan393
     default-router 192.168.10.1
     network 192.168.10.0 255.255.255.0
     authoritative
    !

    such as   AP-1 provision AP-group test-1
              AP-2 provision AP-group test-2
    AP-group tset  
      ap system-profile test-1
        lms-ip 10.10.100.248
        bkup-lms-ip 10.10.100.249
        lms-preemption



    Local

    Masterip 10.10.100.248 ipsec aruba123
    !
    controller-ip 10.10.100.249
    !
    !
    vlan 80
    name  Controller Management
    ！
    vlan 393
    name  Access points Management
    ！
    vrrp 393
      vlan 393
      ip address 192.168.10.1
      priority 90
      authentication password
      no shutdown

    interface vlan 80
    ip address  10.10.100.249 255.255.0.0
    !
    interface vlan 393
     ip address: 192.168.10.3 255.255.254.0
    !
     service dhcp
    ！
     ip dhcp pool vlan393
     default-router 192.168.10.1
     network 192.168.10.0 255.255.255.0
     authoritative


    Now Master  down, ap-1 can be moved to local, when the master recovery, ap-1 is still in the local, can not be transferred to the master, how to solve?



  • 2.  RE: About Master-local deployment

    EMPLOYEE
    Posted Jun 14, 2017 06:14 AM

    - Do not use the controller internal DHCP server on the controller to provide ip addresses to your access points.  The controller DHCP scope sends an option 60 and 43 that automatically points to the controller providing DHCP.  This means that whatever controller is providing DHCP to an AP, the AP will boot up and always point to that controller.  You would have to manually provision that access point with a master ip address to the other controller to prevent that from happening.  Or...you can use an external DHCP server...



  • 3.  RE: About Master-local deployment

    Posted Jun 14, 2017 09:36 PM

    you mean that In this deployment: the controller and ap in the same subnet, I do not configure dhcp option43 & 60, it will automatically send to ap.

    thank you



  • 4.  RE: About Master-local deployment

    EMPLOYEE
    Posted Jun 15, 2017 06:02 AM
    Yes. You should only configure dhcp on the controller you want the access points to be on, because it will silently send the DHCP options to that AP.