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How can I change my ExtremeWireless Controller Management and AP Registration IP

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TitleHow can I change my ExtremeWireless Controller Management and AP Registration IP
Objective
What is the best way to change the ExtremeWireless Controller Management IP and AP registration IP? 

How can I limit downtime on my wireless controller if I change the Management IP? 
Environment
  • ExtremeWireless
  • Any Controller
  • Any Version
  • AP Registration
  • AP Management
Procedure
  1. Prepare user community for a disruption in service.

  2. Add new RADIUS/NPS IP addresses for the controller where needed. 

  3. Add in Controller IP to DNS server.

  4. Backup the primary controller

  5. Shorten the reserved DHCP leases on all subnets to a 15 - 30 minute lease

  6. Change the DHCP option 78 to the new IP.  You can change the static IP in the controller search list. 
    In the mandatory Data Entry Byte box type 0 then click Add. Then type the IP address of the Ide Wireless controller, adding each octet separately. For example; for address 192.168.1.200, type1 (mandatory value) , click Add, type 192, click Add, type 168, click Add, and so on. When done, type OK.

 Logon to the backup controller and release any APs which may have wandered over to it.

  1. Navigate to the AP Multi-edit section, highlight all the access points you want to make the change to.

  2. ***WARNING*** Make sure the address is correct in the static search list field. If it’s wrong and the change is pushed, you will need to reset each access point manually back to factory.  Add in the NEW ip address of the controller in the search list, save the change. Just put in the single new controller, not the redundant pair, at first.

  3. Change the VLAN on the switch port (If necessary)

  4. Change the IP address and VLAN ID of the Port1 topology on the primary and verify its connectivity (may require reboot.) –

  5. Make sure the gateway IP address is changed too…(default route)

  6. Make sure all the AP’s join back to the controller.

  • Confirm configuration with “cget config global”. Look for authIpAddr 1/2 way down. Should be new IP.

  • If this method fails, the admin will have to SSH/telnet into the affected AP's and set the Auth IP to the correct controller 

  • Commands:

    • The command to statically set the controller is ‘cset authIpAddr 1 x.x.x.x’, after that you do a ‘capply’ and ‘csave’. After the csave wait for output saying the CLI was saved to config and then execute with a ‘reboot’ command.

    • If the configuration needs cleared the command 'cset factory' can be used

    • Older AP’s such as the AP4102s / 26xx series use following:

Set authip 1 x.x.x.x

Set authip 2 x.x.x.x
In order to reset to factory defaults: 
Rm apcfg
Rm apcfg.bak
Rm acinfo.conf
Set factory
Reboot

 

  • After All APs are back, rejoin the redundant pair by configuring Availability  

  • Verify redundancy – Verify that the Availability tunnel is up, license mode is paired

  • Test connectivity – Availability reports, AP client reports, etc

  • Change IP address of Controller in NetSight and other network management applications.

  • Navigate to the AP Multi-edit section, highlight all the access points you want to make the change to.

  • Now put in both the primary and backup controllers.

***WARNING*** Make sure the address is correct in the static search list field. If it’s wrong and the change is pushed, you will need to reset each access point manually back to factory.  Add in the NEW ip address of the controller in the search list, save the change.

Additional notes

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