Can SD-WAN replace Internet VPN?

SD-WAN is an advanced alternative to traditional internet VPNs, offering better security and flexibility for cloud-based, mobile user access.

SD-WAN is a good option to replace a basic internet VPN service. In many ways, SD-WAN is an evolution of the standard IPSec VPN service, which is still used today to meet specific or simple requirements. IPSec remains a popular encryption security option for site-to-site or user-to-user requirements where there is no breakout to the public internet. For example, when an IPSec VPN is configured as “VPN-only,” all unauthenticated traffic is dropped, resulting in a secure tunnel between endpoints.

What is a VPN?
What is a VPN?

IPSec VPNs were widely adopted by enterprise businesses before the introduction of smartphones and public cloud applications. As a result, Enterprise VPN architecture requirements were much simpler, often resulting in a single breakout to the internet from a designated data center or branch office location.

However, in today’s world, users require constant access to public cloud resources through phones, tablets, and laptops. This transition to a cloud-based world has resulted in increasingly sophisticated threats to data from hacking. SD-WAN is designed to meet these demands head-on by implementing highly secure feature sets that are consistently updated via the cloud.

Internet VPN vs SD-WAN

wdt_ID wdt_created_by wdt_created_at wdt_last_edited_by wdt_last_edited_at Internet VPN SD-WAN
1 hyelland 21/10/2024 01:30 PM hyelland 21/10/2024 01:30 PM Basic site-to-site communication. Feature rich with dynamic tunnel setup and the ability to steer traffic over any Internet circuit.
2 hyelland 21/10/2024 01:33 PM hyelland 21/10/2024 01:33 PM Low cost and easy to implement from almost any device or application. The vendor or service provider market is competitive and can be difficult to understand the landscape.
3 hyelland 21/10/2024 01:33 PM hyelland 21/10/2024 01:33 PM Good for IOT where hardware simply needs to communicate with a server, i.e. to request more stock. SD WAN can be used across hardware, virtualised instances and applications with a fully featured Enterprise hardened configuration.
4 hyelland 21/10/2024 01:33 PM hyelland 21/10/2024 01:33 PM VPN only configuration. Where requirements involve both secure communications and access to the Internet, SD WAN with SASE (Secure Access Service Edge) and SSE (Security Service Edge) offers significant benefits.
Internet VPN SD-WAN