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What are VPN Tunnels and How do They Work

CATO Networks

VPNs encapsulate data and encrypt the data using an algorithm contained within the transmission protocol. VPN traffic is encrypted and decrypted at the transmission and receiving ends of the connection. VPNs can also be set up using L2TP/IPsec protocols, which proves to have much stronger encryption than PPTP.

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What is SD-WAN?

CATO Networks

This means that corporate networks must change as well. The answer Software-Defined Wide Area Networks (SD-WANs). SD-WAN brings unparalleled agility and cost savings to networking. SDN created an overlay across the local network, opening up a world of possibilities in efficiency and agility.

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23 Good-To-Know Networking Acronyms and Abbreviations

CATO Networks

SASE merges the network optimization capabilities of SD-WAN with a full security stack, including Next Generation Firewall (NGFW), Secure Web Gateway (SWG), Zero Trust Network Access (ZTNA), and more. According to Gartner that coined the term, SASE is the future of network security.

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The Promise and Peril of SD-WANs

CATO Networks

Software-Defined Wide Area Networks (SD-WANs) promised to address the high costs, rigidity and limitations of private MPLS services. To achieve those aims, SD-WAN nodes form an encrypted overlay across the underlying data services, such as xDSL and 4G Internet services, or private services, such as MPLS circuits.

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