Is a VPN the Same as a Public IP?
No — they are close to opposites. A commercial VPN gives you a shared address belonging to somebody else, to hide where you are coming from. A public IP gives you an address of your own that the internet can reach, so people can find you. One is about being anonymous outbound; the other is about being findable inbound. Here is how to tell which one you actually want.
The one sentence that separates them
A VPN changes the address you appear to come FROM. A public IP gives you an address people can connect TO.
Almost every confusion in this area dissolves once that direction is clear. They both involve an IP address that is not your ISP's, so they sound like variations on one idea. They are not: one is outbound and shared, the other is inbound and exclusive, and buying the wrong one gets you something that cannot do the job at any price.
What a commercial VPN actually gives you
You install a client, it builds an encrypted tunnel to the provider's server, and your traffic emerges from that server's address instead of yours. Websites see the provider's address. Your ISP sees encrypted traffic to one destination and not where it ends up.
The address you get is shared, deliberately. Hundreds or thousands of the provider's customers egress from the same one at the same time, and that is the entire point — an address used by one person identifies that person, which is the opposite of what the product is for.
That has a direct consequence people run into constantly: nothing can connect to you through it. Traffic arriving at the provider's address has no way to be about you specifically, and the provider is not going to forward it. Your machine can reach out; nothing can reach in. A commercial VPN cannot host anything, and no amount of configuration changes that.
Some providers do sell port forwarding, usually as an extra. It gives you a port on a shared address, generally not one you choose, and often not stable across reconnects. It exists mostly for peer-to-peer clients. It is not an address, and you cannot point a DNS record at it.
What a public IP gives you
A globally routable address assigned to your machine. It appears in DNS if you want it to, accepts connections on whatever ports you open, and is yours — not shared with other customers.
It is what you need when somebody else has to start the conversation: a game server players join, a webhook a vendor POSTs to, a service you reach from outside your house, a mail server, anything with an MX or A record pointing at it.
What it explicitly is not is anonymity. It is the reverse. The address is attributable to you, it appears in every log of every server you touch, and it is exactly as identifying as a phone number. We say this on the front page and it is worth repeating here, because people arrive at "I need my own IP" from articles about privacy and the two paths lead to opposite products.
Where the confusion comes from
Four specific things, all reasonable.
Both use the same technology. A commercial VPN and our tunnel both run WireGuard or something like it. The mechanism really is the same; the direction of the routing and the exclusivity of the address are what differ.
"VPN" means two unrelated things. The original meaning is a private network joining machines you own across the internet — a corporate VPN, or Tailscale. The consumer meaning is a privacy proxy. They share a name and almost nothing else. If somebody says "just use a VPN", find out which one they mean before you buy anything.
Some VPN marketing says "dedicated IP". This is a real product and it is not what we sell. It gives you an address nobody else egresses from, so you stop being blocked for what other customers did. It is still an outbound identity — it usually accepts no inbound connections, and where it does, it is on the provider's terms.
"My IP changed" sounds like the same problem in both worlds. A VPN changes your apparent address on purpose. An ISP changes your real address by accident. The word is the same, the situation is not.
Which one do you want
Answer one question: who starts the connection?
You do, and you want to be less identifiable. That is a commercial VPN. Nothing on this site helps and you should not buy from us.
You do, and a vendor needs your traffic to come from a known address. That is a fixed outbound address — our $20 plan, or a VPS. Covered in the allowlisting guide.
Somebody else does — a player, a webhook, a friend, you from a hotel. That is a public IP, and it is what we sell.
Only machines you own, in both directions. That is a private mesh. Tailscale is free at that scale, exposes nothing to the internet, and is better than a public address for it. The Tailscale comparison covers where that stops being true.
"What is my IP" has four different answers
Much of the confusion is that the question has no single answer, and different tools answer different versions of it without saying which. On an ordinary home machine there are at least four addresses in play, and they are all legitimately "your IP".
Your machine's LAN address, from ip addr — usually something like 192.168.1.x. Private, meaningful only inside your house, and the one people mistakenly put into port-forward rules on the wrong device.
Your router's WAN address, on its status page. What your ISP handed your household. This is the one that is public on a normal connection and shared-and-unreachable on a CGNAT connection — comparing it against the next one is exactly the CGNAT test.
What the internet sees, from curl -4 https://ifconfig.me. The address a remote server observes your traffic arriving from. On a plain connection it matches your router's WAN address. Behind CGNAT it does not. With a VPN running it is the VPN's.
An address routed to you, if you lease one. Reachable from outside, yours alone, and unrelated to any of the three above.
When somebody asks for "your IP", they almost always mean the third or the fourth, and which one decides whether the thing you are trying to do is possible. If a guide tells you to forward a port and it does not work, comparing the second and third answers is the two-minute check that explains why.
A note on the two together
They are not mutually exclusive, and combining them is a common misunderstanding worth heading off. Running a commercial VPN client on a machine that also has a public address will generally break the public address, because the VPN client installs a default route that captures the machine's outbound traffic — including the replies to connections that arrived on your public address. The connection comes in one way and tries to leave another, and it silently fails.
If you need both on one machine, they have to be split by policy — which traffic uses which path — rather than both simply switched on. That is fiddly, and the usual answer is to put them on different machines.
Where TunnelNet fits
We lease a real, globally routable IPv4 address from our own block and route it to hardware you already own, over a tunnel that dials outward so it works behind NAT and CGNAT. That gives you the inbound half: an address people and services can reach, on ports you choose.
We are not a VPN, we do not sell anonymity, and the address is attributable to you. If what you wanted was privacy, a commercial VPN is a different product and a perfectly good one. If what you wanted was to be reachable, the plans are here.