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Occasional Contributor II

AP NOT JOINING TO 7720 CONTROLLER

I have a 7220 controller and i'm configure dhcp server on 5940 switches

ap getting a ip but not join on the controller.

 

when ap get the ip i'm ping the ap ip from the controller and its reachable.

 

Kindly provide the solution.

Occasional Contributor II

Re: AP NOT JOINING TO 7720 CONTROLLER

Did you disable CPSEC or whitelist the ap's?

 

Are the aps connected to the same L2 VLAN as the WLC?

Did you use option 43 for discovery of the controller?

mkk
Contributor II

Re: AP NOT JOINING TO 7720 CONTROLLER

How does the ap discover the controller? Statis, dhcp option43/60, adp broadcast or dns (aruba-master)?

Be sure cpsec auto certificate deployment is enabled.

Be sure you have the correct licence count

Please aware that the accesspoint gets a gateway in the dhcp response. The ap must have a gateway even in a layer2/same vlan deployment to discover the controller through ADP.
Occasional Contributor II

Re: AP NOT JOINING TO 7720 CONTROLLER

actually i'm configured dhcp server on hp 5940 switch on Vlan-3

and my controller on vlan -2 but all vlans allow to trunk port.

 

so tell me where i need to configure option 43 for discovery of the controllers

Frequent Contributor I

Re: AP NOT JOINING TO 7720 CONTROLLER

Unless your AP and controller and AP are in same L2 domain, you need to configure option 43 (or can statically configure controller IP on the AP) on your DHCP scope. Below link may help you:

https://www.arubanetworks.com/techdocs/ArubaOS_60/UserGuide/DHCP_Option_43.php

JayBee
ACDX | ACCX| CCIE (RnS/SP,DC) | ACCP | ACMP | ACSA | ACMA | JNCIS | JNCIA
If the provided solution resolves your issue, please mark it as accepted solution to help others.
Occasional Contributor II

Re: AP NOT JOINING TO 7720 CONTROLLER

the above link for windows base dhcp server actually i don't have widows dhcp server so thats why i'm configured the dhcp server on HP5940 switch.

so you please tell me how to configured option 43 on HP 5940 Switch.

Occasional Contributor II

Re: AP NOT JOINING TO 7720 CONTROLLER

can you tell me how to configure optin 43 on hp 5940 switch because i'm configured the dhcp server on HP switch

Highlighted
Guru Elite

Re: AP NOT JOINING TO 7720 CONTROLLER

I did the search here:  https://www.google.com/search?q=hp+5940+dhcp+option&rlz=1CAASUL_enUS778US778&oq=hp+5940+dhcp+option&aqs=chrome..69i57.21190j0j7&sourceid=chrome&ie=UTF-8 and click on the first link.

 

The first link is here:  https://support.hpe.com/hpsc/doc/public/display?docId=emr_na-c03187006 and I saw this:

Screenshot 2018-07-11 at 07.40.23.png

 

Please use in the instructions here on what opitons to configure:  https://www.arubanetworks.com/techdocs/ArubaOS_60/UserGuide/DHCP_Option_43.php

******************
Answers and views expressed by me on this forum are my own and not necessarily the position of Aruba Networks or Hewlett Packard Enterprise.
******************
Occasional Contributor II

Re: AP NOT JOINING TO 7720 CONTROLLER

i'm configured the option 43 with following command:-

 

[HPE-dhcp-pool-WIFI-MGMT-VLAN]option 43 ip-address 172.16.0.10 172.16.0.11

 

[HPE-dhcp-pool-WIFI-MGMT-VLAN]display this
#
dhcp server ip-pool WIFI-MGMT-VLAN
gateway-list 172.16.4.1
network 172.16.4.0 mask 255.255.252.0
address range 172.16.4.2 172.16.7.252
option 43 ip-address 172.16.0.10 172.16.0.11
option 60 ascii 'ArubaAP'
#
return
[HPE-dhcp-pool-WIFI-MGMT-VLAN]

 

but ap not join the controller

Guru Elite

Re: AP NOT JOINING TO 7720 CONTROLLER

Please try it with only a single ip address in the DHCP option 43.

******************
Answers and views expressed by me on this forum are my own and not necessarily the position of Aruba Networks or Hewlett Packard Enterprise.
******************
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