How to add a secondary IP alias on macOS
Use this when a second local address is enough and you do not want to replace the main setup.
macOS network guide
How to switch between network profiles on Mac
In this guide, a network profile means a saved recurring setup, not the label of a specific built-in macOS feature. In practice, it is a saved set of IPv4, subnet mask, gateway, DNS and sometimes local alias values for one recurring environment. If you move between office, client, router and lab setups, manual switching becomes slow because you keep rebuilding the same values. IPChange turns those repeated setups into reusable templates you can apply in a few clicks.
What belongs in a real recurring network profile
For practical work, the idea of a profile is simple: one named setup should restore the network values you always need in a specific environment.
- Primary IPv4 mode: DHCP, local static or full static.
- Subnet mask for the target network.
- Gateway if the network expects a fixed route.
- DNS when the environment uses specific name resolution.
- Optional local aliases when one extra address is part of the workflow.
Where manual switching starts to hurt
| Situation | Why manual changes are slow | Why a profile helps |
|---|---|---|
| Consulting for multiple clients | Each customer can have a different subnet, gateway and DNS. | You reuse named setups instead of memorizing values. |
| Router and firewall maintenance | You often return to the same local ranges. | The known working setup is ready when you need it. |
| Lab or demo environments | Temporary changes pile up and get hard to unwind. | You can leave and return cleanly without guessing what changed. |
| Mix of Wi-Fi and USB or Ethernet adapters | You forget which setup belonged to which interface. | The workflow becomes explicit instead of ad-hoc. |
Profile types that are worth saving
- DHCP fallback: the safe default you can always return to.
- Local static profile: IP and mask for direct device access.
- Full static profile: IP, mask, gateway and DNS for one known customer environment.
- Profile plus alias: for environments where the main setup stays the same but a second local address is also useful.
What IPChange adds to the workflow
macOS can absolutely change IPv4 settings. The friction starts when the same tasks come back every week.
- Save named templates for repeated network environments.
- Switch between profiles without retyping the same combinations.
- Keep DHCP, local static and full static setups in one place.
- Combine profile changes with local aliases for device access work.
- Reduce mistakes caused by stale customer values left on the Mac.
FAQ
Is a network profile only about the IP address?
No. For recurring work, the useful part is the whole combination of IPv4 mode, mask, gateway and DNS.
Should I save DHCP as a profile too?
Yes. DHCP is often the most important fallback because it gives you a clean way back to a normal network state.
When is a profile too heavy and an alias is enough?
When your main environment stays the same and you only need one extra local address to talk to a device on another range.
Related pages
Static IP vs DHCP on Mac
Choose the right addressing mode before you decide what should be stored as a reusable profile.