[Nebula] Block device

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paulb
paulb Posts: 16 image  Freshman Member
First Comment Nebula Gratitude First Anniversary
edited April 2021 in Nebula
Hi,

is there any method to block/blacklist a device/user on a nebula operated switch or NSG?

thanks

paul

All Replies

  • Zyxel_Jonas
    Zyxel_Jonas Posts: 313 image  Zyxel Employee
    25 Answers First Comment Friend Collector Fifth Anniversary
    Hi @paulb,

    Yes, there is method on both devices.
    Reminder: Click the "Save" button after the modification.

    Switch: create an ACL deny rule to block the specific device/user.
    Located at Switch > Configure > ACL


    NSG: create firewall rule to block the specific device/user.
    Located at Security gateway > Configure > Firewall


    Hope it helps.
    Jonas,
    Jonas,
  • Alfonso
    Alfonso Posts: 257 image  Master Member
    5 Answers First Comment Friend Collector Second Anniversary
    Hi
    I suppose the first method is the only effective way to do it.
    The second one could be allowing the flows with other devices in the same vlan (unless the device would be connected directly to the NSG).
    Also some specifics attack (as layer two attacks) could be done (DHCP poison, ARP poison ...).

    So I always recommend block the device directly in the switch.

    Regards 

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