How to enable promiscuous mode on a vSwitch in Hyperion

Written By Christian Castagna (Administrator)

Updated at August 5th, 2025

→ Applies to: Hyperion 9.x and above

All commands in this article are intended to be executed via Hyperion CLI.

 

Step 1. Connect to Hyperion appliance via SSH as admin

ssh admin@<your_ip_address_or_hostname>

 

Step 2. Become Super User

sudo su

 

Step 3. List all vSwitches

syneto-nmctl vswitch list

EXAMPLE

syneto-nmctl vswitch list

=== Virtual Switches ===
--- General purpose Virtual Switches ---
Management Network        vswitch0     bridge   activated
  └─ em2 (Management Uplink)
cni0                      cni0         bridge   activated
virbr0                    virbr0       bridge   activated

--- VLAN-Dedicated Virtual Switches ---

 

Step 4. Enable promiscuous mode (replace <vswitch_name> with the correct vswitch name)

ip link set dev <vswitch_name> promisc on

EXAMPLE

ip link set dev vswitch0 promisc on