Controllerless Networks

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Occasional Contributor II

About Master-local deployment

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?

Guru Elite

Re: About Master-local deployment

- 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...



Colin Joseph
Aruba Customer Engineering

Looking for an Answer? Search the Community Knowledge Base Here: Community Knowledge Base

Occasional Contributor II

Re: About Master-local deployment

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

Guru Elite

Re: About Master-local deployment

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.


Colin Joseph
Aruba Customer Engineering

Looking for an Answer? Search the Community Knowledge Base Here: Community Knowledge Base

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