Site-to-Site or Client-to-Site VPN?

About this interactive

The internet gives cheap, fast connections between sites and users, but the traffic crosses a public network. A virtual private network encrypts it: anyone can see the ones and zeros, but not what they mean. That is what makes it virtually private. A site-to-site VPN joins two networks, such as headquarters and a satellite campus. Traffic is encrypted as it leaves one site's router or firewall and decrypted at the other's, so users on either side need nothing special. IPsec is a common protocol for this tunnel. A client-to-site VPN is for users who have no router or firewall of their own to connect, at home or in a coffee shop. Software on their device encrypts traffic to the office, usually to a firewall. IPsec works here too, and TLS VPNs are used on the client side. To sort a card, ask where each end of the tunnel sits: on network devices at two sites, or on one person's device.

What you'll learn

Tell a site-to-site VPN, which joins two networks through their routers or firewalls, from a client-to-site VPN, which runs from software on one device to the office
Recognize that a VPN keeps traffic virtually private by encrypting it across a public network, with IPsec or TLS

Aligned to

CompTIA Security+

3.2 Given a scenario, apply security principles to secure enterprise infrastructure.

Key terms

Site-to-Site VPN: A VPN configuration that connects two fixed network locations through an encrypted tunnel over the internet, allowing them to communicate as a single network.
Client-to-Site VPN: A VPN configuration that allows individual client devices using software to securely connect to a remote private network.
IPsec: A suite of protocols that authenticates and encrypts IP packets to provide secure communication over a network.
Transport Layer Security: A cryptographic protocol that provides secure communication over a network, successor to SSL.
Encryption: The process of converting readable data into an unreadable format using an algorithm and key to prevent unauthorized access.

Topics

Interactive Streak Sort

About TechKnowSurge

TechKnowSurge builds IT and cybersecurity professionals through hands-on, concept-first training built around real understanding — not memorization. Free interactive tools, structured programs, and 25+ years of real-world experience, all in one place.

Explore free tools and programs →