Same SSID with Multiple Vlan

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  • Updated 9 months ago
I have ZoneDirector ZD1200, Build 10.0.1.0 build 35.

I have building A and B with same SSID let say "test".

Each building have different  Vlan total 4 Vlan each Vlan has it own DHCP range.

Now how can i mange different different Vlan AP with ZD1200 with same SSID?


   
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Dipesh Ghutla

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Posted 9 months ago

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Monnat Systems, AlphaDog

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VLAN pooling you can consider... see below KB for more info

https://support.ruckuswireless.com/answers/000002747
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Jakob Peterhänsel

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Hi Dipesh,

Try this:

1: Create WLAN Groups for each building
2: Create AP groups for each building
3: Create a SSID for each building:
 WLAN should be named different for each building, but the ESSID can be the same. ESSID is what the client sees 'on the air'.

4: Assign the WLAN to the WLAN Group for the building, and assign that WG to the AP Group.
5: Assign AP's in each build to the AP group for that building

Test if it works.. I have not tried it, but in theory it should.


If you do this, just to keep DHCP ranges down, it might be easier to look into Dynamic VLAN's
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Dipesh Ghutla

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I have configured above steps,  now AP didn't communicate with the controller.
I am using Cisco POE switches I have tag ZD port and untagged  AP port both trunk mode in Vlan5 and but AP is not communicating with ZD, while my dhcp server works.
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Jakob Peterhänsel

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Check you switch.
What VLAn is the AP's MAC registred on?
Can you ping the AP IP?
And from where?

AP should not stop talking to the ZD unless you changed the management VLAN it's on.. 
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Dipesh Ghutla

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Thank you Jakob, it works like charm. Managment VLAN 1 and access VLAN 5 in ZD with external DHCP server.

Let me know if any other better thought.
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Andrea Coppini, Employee

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What Jakob said.

I would add that you need to make sure there is no coverage overlap between your buildings.  When clients roam from one AP to another on the same SSID, many clients will not send a DHCP request.  If a client roams from AP A in building A on subnet A, to AP B in building B on subnet B, the client is suddenly in the wrong subnet and will lose IP connectivity.

If the distance between A and B is far enough that the client will have to disconnect from A before connecting to B later, you'll be fine.

If there IS overlap, either use different SSIDs, or use a single SSID and enable Tunnel mode, this way all the traffic will egress to the LAN at the ZD's port/VLAN.