Site-to-Site VPN:

Security Across Networks

What is a Site-to-Site VPN?

Site-to-Site VPN is a connection established between two or more networks.


Particularly useful for business with multiple offices or one central office and a number of branches, site-to-site VPN enables the interaction between networks with largely different geographical locations.

How Does It Work?

The main function of site-to-site VPNs is to connect entire networks without the need to use any third-party software on every individual network device.


These types of virtual private networks create tunnels specific to the users logged in to that network, and by encrypting and decrypting all data at the gateways of each site (a company office, for instance), they omit the need of running any other VPN application.


The tunnel itself is protected by firewall configurations and cannot be accessed by outside agents such as hackers.

Thanks to the encryption/decryption within the network and the fact that the tunnel is only accessible via authorized credentials, any possible man in the middle is kept out of this network, which in turn ensure the integrity and safety of sensitive data.


Site-to-site VPNs, usually established as IPsec networks, aim to increase efficiency and work rate by acting as permanent secure connections (or tunnels) between different sites. In other words, these VPNs are established once and are not restarted every time a user logs on.

Who Uses Site-to-Site VPN?

  • Companies with multiple branches;
  • Businesses with international offices;
  • Remote & work from home personnel;
  • Remote field operation teams;
  • Growing enterprises and businesses;
  • Companies that experience disruptive conditions.

Benefits of a Site-to-Site VPN

Site-to-site VPN that connects multiple networks across the globe offer amazing flexibility and operational efficiency to the businesses using them:

  • Scalability:

VPNs can be easily defined and expanded, allowing you to add new sites, define new users and groups, grant access credentials, etc. This innate feature of site-to-site VPNs offers a great amount of flexibility when delaing with issues such as office relocation, new branches, partner organizations, network growth, and so on.

  • Operational Advantage:

As site-to-site VPNs are based on remote access, they provide users with physical operational freedom. This is a vital advantage, especially when dealing with force majeure situations such as natural disasters, infrastructure failure, and the like. In the event of any such mishaps, employees of any affected site can resume work immediately via temporary individual authorizations. This option also comes in handy if you a part of your staff are working from home.

  • Robust Security:

The closed tunnel design of site-to-site VPNs ensures unfailing security in the face of malicious online activity. Sniffing, phishing, snooping and whatnot should no longer worry you as all actors of cyberthreat are locked out of your networks and tunnels thanks to predefined access authorizations, firewall configurations, data encryptions, and other layered security measures.