Q: Can I change my subnet mask to improve security?

Changing your subnet mask can improve security by creating smaller network segments that limit device communication. However, this requires careful planning to ensure all devices can still access necessary resources like internet gateways and shared services.

Q: How do subnet masks affect internet speed?

Subnet masks themselves don't directly affect internet speed, but proper subnet design can improve network performance by reducing broadcast traffic and optimizing routing paths. Poorly designed subnets might create bottlenecks that slow down local network communication.

Q: Do VPNs bypass subnet mask restrictions?

VPNs create encrypted tunnels that bypass local subnet restrictions by routing all traffic through VPN servers. This allows access to resources that might be blocked by subnet-based firewall rules while providing privacy protection.

Q: What subnet mask should I use for a small business?

Small businesses typically use /24 subnet masks (255.255.255.0) for simplicity, providing 254 usable addresses per subnet. Larger organizations might use /16 or implement multiple smaller subnets based on departmental needs and security requirements.

Q: How do I find my current subnet mask?

On Windows, use "ipconfig" in Command Prompt. On Mac or Linux, use "ifconfig" or "ip addr show". Your router's web interface also displays subnet mask information for your local network configuration.

Back to Blog

technicalFebruary 16, 202610 min read1,940 words

What Is a Subnet Mask? Understanding Network Segmentation in 2026

Subnet masks are fundamental networking tools that divide IP networks into smaller segments. Understanding how they work helps you better secure your network and protect your privacy online.

Protect Your Privacy Today

Every website you visit can see your IP address and track your location. Take control of your online privacy with a VPN.

Get NordVPN - Hide Your IPUp to 72% off

6,400+ servers, Double VPN, Threat Protection. 30-day money-back guarantee.

technical

Ready to Protect Your Privacy?

Don't let websites track your IP address. Take control of your online privacy today.

Get NordVPN - Up to 72% off

What Is a Subnet Mask? Understanding Network Segmentation in 2026

Protect Your Privacy Today

Related Articles

OpenDNS Guide: How It Works and Privacy Implications in 2026

Google DNS: Privacy Risks and Better Alternatives in 2026

Cloudflare DNS: Complete Guide to 1.1.1.1 Privacy & Security

Ready to Protect Your Privacy?