More Musings

WAL

Certainly! Here’s a redrafted explanation focusing exclusively on the Starlink Gen 3 system, configured in Bypass Mode (bridge mode) to work directly with a UniFi router, and without using the optional Ethernet Adapter:

Using Starlink Gen 3 with UniFi Routers — No Adapter Needed

If you have the Starlink Gen 3 system (featuring the flat high-performance dish and Starlink Router v3), you can connect it directly to your Ubiquiti UniFi router without needing the optional Ethernet Adapter—as long as you’re using Bypass Mode.

Here’s how and why it works:

  1. Starlink Gen 3 Has Built-in Ethernet Ports
    • The Gen 3 Starlink Router includes two physical Ethernet ports:
    • One port connects to the dish (this is the WAN side).
    • The other functions as a LAN port, which becomes a pass-through (bridge) port when Bypass Mode is enabled.

This means there’s no need to purchase the additional Starlink Ethernet Adapter, which was only essential for Gen 2 hardware that lacked built-in ports.

  1. Bypass Mode Enables Full Bridge Functionality

When you enable Bypass Mode in the Starlink app:

•	The Starlink Router’s internal routing and Wi-Fi are completely disabled.
•	One of the Ethernet ports (typically labeled “LAN”) becomes a true Ethernet passthrough carrying the WAN signal directly from the dish.
•	You can then connect this Ethernet port straight into the WAN port on your UniFi router.

  1. UniFi Routers Work Seamlessly with Starlink in Bridge Mode
    • UniFi routers (like the UDM, UDM Pro, or UXG-Pro) accept DHCP from Starlink by default—no special setup is required.
    • Once plugged in, your UniFi system takes over:
    • Handles DHCP, NAT, VLANs, firewall rules, traffic shaping, and VPNs.
    • Provides better performance and visibility than the default Starlink router.

  1. Power Cycling After Configuration

Once you’ve enabled Bypass Mode and connected the UniFi router:

•	Power cycle both the Starlink system and the UniFi router.
•	This ensures a clean DHCP lease and correct network role assignment.

  1. Key Benefits of This Setup

Feature Outcome

Clean routing setup No Double NAT, no firewall conflicts

Full control UniFi manages all network features

No extra hardware Built-in ports are sufficient

Simplified topology One cable from Starlink to UniFi is all that’s needed

  1. Things to Be Aware Of
    • No public IPv4 address: Starlink still uses CGNAT unless you subscribe to a business plan with public IP.
    • Dynamic IP: Starlink IPs change frequently—use Dynamic DNS (DDNS) if you need remote access.
    • No fallback Wi-Fi: Bypass Mode disables Starlink Wi-Fi entirely. UniFi APs are required for wireless.

In Summary

Connect the correct built-in Ethernet port from the Starlink Router to your UniFi WAN port, enable Bypass Mode, and you’re good to go.