Layer 2 isolation on wireless controller from USG Flex 500

Niels2021
Niels2021 Posts: 7  Freshman Member
Zyxel Certified Network Engineer Level 1 - Nebula Zyxel Certified Network Engineer Level 1 - Security Zyxel Certified Network Engineer Level 1 - Switch Zyxel Certified Network Engineer Level 1 - WLAN
in Security
Normally we set up our Access points (NWA210AX) in standalone mode. Most of our clients have maximum 5 AP's, so that's perfect. We often offer then a extra SSID on a separate VLAN with also Layer 2 Isolation enabled, so that clients can only access the internet.

For a big client now, we need minimum 25 AP's, so we decided to work with Wireless controller on Flex 500 in combination with WAX610D AP's. But I cannot find Layer 2 isolation in AP Profile on the Flex? It's in the firewall, but only available on LAN1/LAN2/Reserve/DMZ interface. I cannot select a VLAN. How can I be able to do this? We don't want to use Nebula(also because then the WAX610D would be overkill) :)

All Replies

  • Zyxel_Stanley
    Zyxel_Stanley Posts: 1,377  Zyxel Employee
    100 Answers 1000 Comments Friend Collector Seventh Anniversary

    Hi @Niels2021  

    If AP is controlled by ZyWALL series, then there are many different scenarios in L2/L3 communication. So L2 isolation function removed from AP profile.

    As your requirement: Wi-Fi client can only access to Internet but is unable to communicate in layer 2 network.

     

    You can configure it to realize your scenario:

    (1) Enable Intra-BSS Traffic blocking in AP profile

    ->Prevents peeping from associated Wi-Fi clients those connected using the same AP and SSID.

    (2) Enable L2 isolation on your switch ports those connected to APs.

    ->Prevent switch replies client MAC address to others AP. So enable L2 isolation on AP connected ports.

  • Niels2021
    Niels2021 Posts: 7  Freshman Member
    Zyxel Certified Network Engineer Level 1 - Nebula Zyxel Certified Network Engineer Level 1 - Security Zyxel Certified Network Engineer Level 1 - Switch Zyxel Certified Network Engineer Level 1 - WLAN
    Zyxel_Stanley said:

    Hi @Niels2021  

    If AP is controlled by ZyWALL series, then there are many different scenarios in L2/L3 communication. So L2 isolation function removed from AP profile.

    As your requirement: Wi-Fi client can only access to Internet but is unable to communicate in layer 2 network.

     

    You can configure it to realize your scenario:

    (1) Enable Intra-BSS Traffic blocking in AP profile

    ->Prevents peeping from associated Wi-Fi clients those connected using the same AP and SSID.

    (2) Enable L2 isolation on your switch ports those connected to APs.

    ->Prevent switch replies client MAC address to others AP. So enable L2 isolation on AP connected ports.


    Hello,

    Thank you for your response.

    Intra-BSS Traffic blocking is a begin, but not enough because everyone on another Access Point will still be able to access the client on a different Access Point.

    Preventing switch replies to other AP's is also not a solution, because the AP's also have an internal SSID where clients are free to communicate with other wireless clients.(for example a mobile phone screencasting over wifi to a laptop)


  • Zyxel_Stanley
    Zyxel_Stanley Posts: 1,377  Zyxel Employee
    100 Answers 1000 Comments Friend Collector Seventh Anniversary
    edited July 2021

    Hi @Niels2021  

    You still can achieve your requirement by configure different devices.

    (1) On FLEX500, create multiple VLANs for different SSIDs.  (e.g. VLAN10/20 are isolate/ VLAN30 non-isolate)

    (2) On FLEX500, Enable Intra-BSS Traffic blocking in AP profile those you would like to isolate. (e.g. VLAN10/20)

    (3) Enable VLAN isolation those you would like to limit VLAN ID. (some switches support it. e.g. GS1920) Then unlimited VLAN(SSID) clients are free to communicate with other wireless clients.


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