12-13-2013 07:54 PM
my design breif is below:
user subnet 192.168.1.0/24
controller ip 192.168.1.2
gateway(core switch ) 192.168.1.1
i want the controller does a dhcp relay agent..but the user gateway is point to the core switch...
between user and controller is tunnel mode ...
so i just need to configure the uplink of controller to be a trunk,right ?
and one more question, can i see user information like mac address on controller ? any command to do that ?
many thanks for all reply
12-13-2013 09:55 PM
Yes you can see mac address information on your controller
About the Dhcp Relay.
Okay if you got your Interface vlans on your core switch, which it should be like that.
Then the DHCP relay or Ip helper should be configured in the Switch core NOT on the wireless controller.
You will want to do a L2 controller deployment, ill give you an example of how is it
WLAN VLan 2 = 192.168.2.0/24
WLAN Vlan 3 = 192.168.3.0/24
Equipment vlans(like the vlan in which you got your switches and that kind of stuff) in which you can put your Wireless controller
Example Vlan 5 = 192.168.5.0/24
Ip address of your Wireless controller = 192.168.5.254
ip address of that vlan on the switch core = 192.168.5.1
Default gateway of your Wireless controller = 192.168.5.1
You need to trunk to the controller vlan 2,3,5
An L2 deployment consist in trunking vlans to the wireless controller
There is also a L3 deploying which consist on managing routes between the swtich core and the Wireless controller but the L2 deployment is recommended.
In the example i gave you the default gateway of your WLAN users is the Switch Core
You would have on your switch core an interface vlan for vlan 2 and vlan 5
All the routing is done on the switch core.
I dont know if this help you with your question??? or you got something you would like to ask?
Product Manager - Aruba Networks
12-14-2013 04:10 AM
You should be able to use the controller as the IP helper/relay, and the core as the gateway yes.
The controller will use it's 192.168.1.2 address as the relay source, and it will send the requests to whatever your DHCP server is.
In the DHCP server scope, define the default router as the core switch IP.
As long as the DHCP server can route back to that user network (via the core I would imagine), it should be fine.
Granted, it's a much cleaner/simpler setup if the default router and helper is the same device, but it's not mandatory.