[NEBULA] How to establish Site to Site IPSec VPN between Nebula Devices (NSGs) ?

Zyxel_CSO
Posts: 445
Zyxel Employee





Prerequisite:
LAN (Private subnet) Networks cannot overlap between each site
Scenario 1 : Setup site to site VPN between Nebula devices (eg: NSG100 and NSG200) under the same organization

Configure Site to Site IPSec VPN on NSG200 in NSG200 site
1. Configure > Security gateway > Site-to-Site VPN
2. Select Outgoing interface and toggle on LAN1

3. Toggle on Nebula VPN enable, select Site-to-Site for Nebula VPN topology and save configuration

Configure Site to Site IPSec VPN on NSG100 in test Jason NSG100 site
4. Configure > Security gateway > Site-to-Site VPN
5. Select Outgoing interface and toggle on LAN1

6. Toggle on Nebula VPN enable, select Site-to-Site for Nebula VPN topology and save configuration

7. Result of VPN IPsec Connection between Nebula Devices under same organization

Scenario 2 : Setup site to site VPN between Nebula devices under the different organizations
Please refer to this post.
LAN (Private subnet) Networks cannot overlap between each site
Scenario 1 : Setup site to site VPN between Nebula devices (eg: NSG100 and NSG200) under the same organization

Configure Site to Site IPSec VPN on NSG200 in NSG200 site
1. Configure > Security gateway > Site-to-Site VPN
2. Select Outgoing interface and toggle on LAN1

3. Toggle on Nebula VPN enable, select Site-to-Site for Nebula VPN topology and save configuration

Configure Site to Site IPSec VPN on NSG100 in test Jason NSG100 site
4. Configure > Security gateway > Site-to-Site VPN
5. Select Outgoing interface and toggle on LAN1

6. Toggle on Nebula VPN enable, select Site-to-Site for Nebula VPN topology and save configuration

7. Result of VPN IPsec Connection between Nebula Devices under same organization
- VPN Site to Site Connect will take 5 minutes to take effect after correct configuration
- Monitor > Security gateway > VPN connection in NSG200 Site

- Monitor > Security gateway > VPN connection test Jason NSG100 Site

Scenario 2 : Setup site to site VPN between Nebula devices under the different organizations
Please refer to this post.
Zyxel Nebula Support
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