Deploy wifi without VLAN

chenhui · Created Sep 25, 2020 11:26:35

Posted by Vien at 2020-09-25 10:41 Hi, We need to create 2 VLAN: Management VLAn and Sevice VLAN as picture. Can we use default VLAN ( ...

Theoritically, it's possible to do that. But it's strongly recommended NOT to do that.
The management traffic might be starving if the service traffic occupy the most bandwidth, in which situation, you might loose the remote management of the device. What's more, the protocol key traffic dropping might cause serious results.
For example, if the STP BPDU traffic dropped, it might cause the network loop occurring, and as a result, the broadcast storm cases more traffic dropping, as the worst result, the whole network might down.

chenhui · Created Sep 25, 2020 10:33:01

Hi,
Sorry, but I'm not very understand what you mean deploy WLAN without VLAN. Can you explain that more detailed?

Vien · Created Sep 25, 2020 10:41:09

Hi,

We need to create 2 VLAN: Management VLAn and Sevice VLAN as picture. Can we use default VLAN (VLAN 1) for both? Because I do not want to change existing network.

chenhui · Created Sep 25, 2020 11:26:35

Posted by Vien at 2020-09-25 10:41 Hi, We need to create 2 VLAN: Management VLAn and Sevice VLAN as picture. Can we use default VLAN ( ...

Theoritically, it's possible to do that. But it's strongly recommended NOT to do that.
The management traffic might be starving if the service traffic occupy the most bandwidth, in which situation, you might loose the remote management of the device. What's more, the protocol key traffic dropping might cause serious results.
For example, if the STP BPDU traffic dropped, it might cause the network loop occurring, and as a result, the broadcast storm cases more traffic dropping, as the worst result, the whole network might down.

Vien · Created Sep 25, 2020 14:45:25

If I accept the risk. How can I do that?

Mash_man · Created Sep 27, 2020 10:56:12

You could use a secondairy ip to differentiate but do mind only the primairy interface will be able to do DHCP relay or server function.

This can be done like setting the primairy ip on an interface and add "sub" after the command.

Technically you are not using 2 vlans, you would be using 2 io subnets in one vlan so there is not real seperation beteween the services.

So I think you could but realy it would be an better idea to redesign this infra to make it more secure.

Deploy wifi without VLAN

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Deploy wifi without VLAN

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