Is it actually possible to ban VPNs?

Can Governments or Networks Really Ban VPNs?

It’s a common question: Can you actually ban VPNs? The short answer is—yes, to some extent. While completely erasing every possible way to use a VPN is nearly impossible, authorities and network administrators can make it extremely difficult for users to connect through them.

One of the most straightforward methods is blocking specific ports used by popular VPN protocols. For instance, PPTP (Point-to-Point Tunneling Protocol) typically runs on port 1723, and L2TP (Layer 2 Tunneling Protocol) often uses port 1701. By closing these ports, system administrators can prevent common VPN connections from forming on their networks. It’s a tactic frequently used in workplaces, schools, and even by entire countries looking to control internet access.

But it doesn’t stop there. Some networks go further by inspecting traffic patterns. Even if a user switches to a different port or uses encryption, deep packet inspection (DPI) can detect and block traffic that "looks like" a VPN. This is how countries like China enforce their so-called Great Firewall—targeting not just ports, but the very structure of encrypted data streams.

Still, banning VPNs entirely is a game of cat and mouse. As restrictions tighten, new tools emerge—like obfuscated servers or stealth protocols—that disguise VPN traffic as regular HTTPS traffic, slipping past firewalls undetected. So while access can be heavily restricted, determined users often find workarounds.

In the end, blocking VPNs isn’t about flipping a single switch—it’s about layers of control. And while bans can limit casual use, they rarely stop those who are technically savvy or highly motivated. The digital arms race between privacy seekers and censors continues, evolving with every new protocol and firewall update.