trouble adding vlan to an SSID

  • 1
  • Question
  • Updated 5 years ago
We are trying to setup a second WLAN in our infrastructure. This WLAN would using a different vlan from the standard wifi.

standard WIFI->vlan 3
guest WIFI -> vlan 5

The ports were APs and Zone Director(ZD 1100) are connected are trunks allowing vlan 3 and 5, with vlan 3 as native.

When I use standard wifi everything work. When I try the guest wifi my clients do not get any IP.

We have two dhcps one for vlan 3 and one for vlan 5.
When I connect a dekstop on a similar trunk port and set the network card to use vlan 5, an IP from vlan 5 dhcp is assigned.

Considering that I guess it is because the packet on the guest are not properly tagged.

Here is my configuration
wlan configuration

APs configuration

thank for the help
Photo of joseph-andre Guaragna

joseph-andre Guaragna

  • 1 Post
  • 0 Reply Likes

Posted 7 years ago

  • 1
Photo of Harish

Harish, Employee

  • 21 Posts
  • 4 Reply Likes

From your description I came to know that in your network.
Vlan 3-> Native Vlan for standard SSID[untagged].
Vlan 5 -> guest WIFI

->When you try to connect the guest wifi what IP address do your clients get?
Do they get APIPA IP or an IP from Native Vlan 3 subnet.

-> What happens if you connect a client to a switch port where only Vlan 5 is tagged, do they get IP from proper scope.

-> Is both Vlan 3 and Vlan 5 scopes are defined on a single DHCP server?

Could you Please try configuring a new standard SSID with Vlan 5 tagged and see if clients are able to get an IP from proper scope.

Please let me know the above details for better understanding.

Harish Kumar
Photo of Andrew Nix

Andrew Nix

  • 1 Post
  • 0 Reply Likes
Hey Guys,

I am having a very similar problem.

Basically I have 3 vlans for my wireless, valn12 managment, vlan20 standard wireless, vlan21 guest wireless.

I have my switch ports configured for both the connection to ZD and the AP configured with vlan12 untagged and tagged for all other vlans.

When I specify a vlan in the SSID other than the default, clients will get an APIPA address.

If I leave everything as default vlan id 1 I get an IP address from vlan12.

If I set the default vlan id on the console interface I am no longer able to talk to the ZD at all.

What am I doing wrong?

Any suggestions would be greatly appreciated.
Photo of Victor Tort

Victor Tort

  • 20 Posts
  • 2 Reply Likes
Hi Andrew,

are you connecting the ZD to a trunk port in the switch?
Could you set a monitor port and try to capture some traffic? I would like to identify if traffic is flowing as expected.

What about fixing an IP? does it work?

Photo of Paulo Dayon

Paulo Dayon

  • 3 Posts
  • 0 Reply Likes
Was there a solution to this post?