Controller Based WLANs

Do I really need a loopback address?

Aruba Employee

Product and Software: This article applies to all Aruba controllers and ArubaOS versions.

 

For a controller to communicate with rest of the network, only an IP interface associated to a VLAN is needed. A loopback interface is not a must. On the other hand, it is not advisable to have a loopback(or management address) and no IP interface associated to any of the VLANs. When you use the loopback interface, assign a routable IP from one of the VLANs local to the controller.

 

You can use loopback interface for sourcing the traffic from the controller.

 

For example:

(A200)(config) #ip radius source-interface loopback

 

Here is how you would configure the loopback address:

 

(A200) (config) #show ip interface b

 

 

Interface IP Address / IP Netmask Admin Protocol

 

vlan 1 172.16.0.254 / 255.255.255.0 up down

 

vlan 400 10.168.123.186 / 255.255.248.0 up up

 

loopback 10.168.123.185 / 255.255.255.255 up up

 

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Last update:
‎07-02-2014 12:08 PM
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