RNP BUSINESS GUIDES / Connecting your network
Does Starlink Business provide a static IP address?
THE SHORT ANSWER
Starlink’s optional public IPv4 service is not a static-IP guarantee. Its current policy offers public IPv4 to eligible Priority customers using DHCP, and the address can change. If a business application requires a permanently fixed source address or inbound access, have the network administrator design and test that requirement explicitly.
01 / Connecting your network
What does the current address policy establish?
Starlink uses carrier-grade NAT by default, which blocks inbound connections. Its optional public IPv4 assignment for Priority is dynamic rather than static. The policy also describes public IPv6 prefix delegation for compatible networking equipment. Confirm the option visible in the actual account and firewall.
A public address and a fixed address solve different problems. Public addressing can make a device reachable from outside when the network permits it; fixed addressing gives another system a stable address to recognize. Neither removes the need for access controls or proves that a particular application works.
Source: Starlink — IP address policy.
02 / Connecting your network
Which requirement does your application have?
| Business requirement | Question for the administrator |
|---|---|
| A supplier allows only approved source addresses | What happens when the WAN address changes? |
| Staff connect into an office system | Can access use an approved outbound-established tunnel or managed service? |
| A site-to-site VPN connects premises | How does the tunnel handle changing endpoints? |
| A device uses a hostname | Does the application support the proposed name and update behavior? |
| IPv6 is part of the design | Do the firewall, application and remote endpoint support the full path? |
03 / Connecting your network
What alternatives should be evaluated?
Depending on the application, the administrator may assess a managed tunnel, a hosted gateway with a stable egress address or an application-specific remote-access service. These are separate services and designs, with their own cost, security and support implications. Do not buy one before checking the actual application requirement.
Dynamic DNS can associate a name with a changing address, but it does not by itself make an inbound connection possible through carrier-grade NAT. It also does not satisfy a supplier that only accepts a fixed numerical source address. Record exactly what the remote system accepts rather than relying on a broad “remote access supported” statement.
04 / Connecting your network
What should the acceptance test include?
- Normal access through the intended Starlink and firewall configuration.
- Reconnection after a controlled restart or WAN transition.
- Behavior when the primary circuit returns after failover.
- Confirmation from the remote application owner that the access rule is suitable.
- A documented response if an address change prevents access.
05 / Connecting your network
What belongs in the project brief?
Identify the application, the remote owner and whether the requirement is inbound reachability, a stable source address or both. Include the current firewall and the person responsible for managing it. Avoid placing credentials, private keys or administrative passwords in a general quote form.
RNP can coordinate the physical installation with that network requirement. If the proposed solution depends on a third-party tunnel or hosted gateway, its configuration and support ownership should appear explicitly in the scope so the business knows who to contact when access fails.
About this guide
RNP’s planning recommendations are separate from vendor specifications. Sources were checked on October 15, 2026; current plan terms, availability and account-specific offers can change. Illustrative calculations are not installation measurements. RNP confirms project scope, price and local delivery availability after assessment.
PLAN THE INSTALLATION
Turn the question
into a clear brief.
Describe the application’s address requirement and your current firewall.
Request a project review ↗Scope, location, price and availability are reviewed before work is accepted.