Initial Setup Wizard for Subnet Allocation

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In Nebula 18.30, USG FLEX H series support Nebula VPN, to simplify VPN configuration and prevent subnet conflicts, NCC automatically assigns subnets for the local network when setting up centralized firewalls.

How Subnet Allocation Works:

• USG FLEX / ATP Firewalls → VPN subnet starts from 192.168.1.0/24
• USG FLEX H Series Firewalls → VPN subnet starts from 192.168.168.0/24
• This ensures a structured subnet plan that prevents overlapping subnets when deploying Nebula VPN.

Initial Setup Wizard for Nebula VPN

• When a firewall is assigned to an organization and site, NCC pre-reserves a subnet for the VPN.
• This automated process reduces the chance of network conflicts when multiple firewalls are deployed within an organization.

New: Subnet Planning Feature

• Once a firewall is assigned to a Nebula site, NCC automatically assigns a VPN subnet to each firewall.
• Users can choose to retain and use the default GE3/GE4 subnet settings.

Finalizing the Setup

• Click “Finish” and wait 10 seconds → The firewall applies network changes.
• Click “Connect to New Network” → Redirects to the login page for further configuration.