The Difference Between SASE and SD-WAN
According to the 2022 Cloud Computing Market Report, about 70% of firms have already shifted and migrated data from enterprise resource planning (ERP) applications to cloud computing servers. With this shift, enterprises need to add on some network security system to protect their company information at cloud servers. Usually, organizations would add SASE and SD-WAN on the cloud server.
What is SASE?
SASE means secure access service edge, which integrates WAN’s capabilities to provide the comprehensive data security functions for any device on the Internet. Such as the network security of web gateway, cloud access, firewall, and Zero Trust network access, to protect the network from attacks when accessing in cloud and mobile environments.
The Advantages among SASE
- Simplifying the network complexity and endpoint security posture management process by combining SD-WAN into a single cloud data center.
- Easier for companies to consistently manage and monitor network security to prevent cyberattacks.
- Reducing the complexity and cost of balancing endpoint security.
- Providing a more uniform security posture across all applications and network services.
- Enabling IT teams to focus more on their business needs than on IT operations.
- Offering users to gain security access to a company's network at fast speed with any device anytime.
What is SD-WAN?
SD-WAN is a network architecture that provides software-defined wide area network (WAN) functionality. SD-WAN is designed to provide private and public networks to securely connect remote and mobile devices to applications. SD-WAN is composed of customer edge routers, centralized controller and distributed virtual WAN control engines that work together with the customer’s existing WAN infrastructure.
SD-WAN is deployed in a hub and spoke topology where there are many ‘’virtual’’ customer edge routers at the hub site, which communicate with another customer edge router at the spoke site. Connections are terminated across a media like satellite or DSL for example rather than across expensive long haul connections such as MPLS VPNs or frame relay circuits.
The Advantages among SD-WAN
Reduced WAN Costs
SD-WANs are cost effective because they help reduce WAN costs, require less hardware, and can be scaled easily.
Optimized WAN Performance
A geographically dispersed workforce requires considerably more bandwidth than a centrally located one. SDWAN addresses this need by providing an easy and reliable way to connect multiple offices.
SD-WAN is an intelligent WAN optimization solution that enables enterprises to achieve fast and secure data transmission across remote sites, branch offices, and data centers. With a SD-WAN, enterprises are able to cut the cost of bandwidth by connecting their remote sites with nearby or regional Internet Service Providers (ISPs).
Optimized WAN Agility
With SD-WAN, enterprises can have a WAN with the agility they need to meet the varying demands of cloud workloads.
SD-WAN provides enterprises with maximum flexibility in their IT infrastructure so they can scale up or down as needed. This enables them to remain agile and flexible in a constantly changing digital world. It also removes the need for internal bandwidth resources since it is managed by an SD-WAN service provider and delivers content from the nearest location.
Cloud Based Architecture
SD-WAN is based on a cloud-based architecture that enables organizations to deploy VPN as if they were SaaS apps. The SD-WAN will not only make networking easier, but it will also be more flexible and scalable.
It’s important to note that the SD-WAN solution supports multiple protocols, so you can use the one that is best for your business needs.
When SASE + SD-WAN, How to Maximize the Results to Your Company?
SASE SD WAN adds four security features when both 2 software integrate together:
Next-generation firewall-as-a-service (FWaaS)
SASE SD WAN offers a firewall-as-a-service (FWaaS) in the cloud for enterprises to provide security for their data. This is done through a virtual firewall that provides protection against DDoS attacks and malicious traffic. The firewall also features advanced security methods as well as data encryption.
A Next-generation firewall-as-a-service (FWaaS)
In today’s world, sensitive data can be accessed by anyone, anytime and anywhere via the internet. With this in mind, enterprises want to be able to protect their sensitive data from both internal threats as well as external cybercriminals using different techniques such as firewalls. In recent years, the traditional hardware based firewall has been replaced by virtual firewalls which are more efficient and can be adapted to specific needs of an enterprise when it comes to protecting sensitive information.
Secure Web Gateway (SWG)
SWG is a web proxy that is used to monitor and filter web traffic from the browser. This is done to protect against threats such as harmful links, viruses, and other such problems.
SWGs analyze the content of each URL request that a user makes before it gets sent to the destination server. They can also analyze data from social media networks. It usually gathers information from anywhere between five and 1,000 URLs per second.
Cloud Access Security Broker (CASB)
CASB extends the Secure Web Gateway (SWG) to provide application-level network visibility and policy enforcement. From the perspective of the CASB, a CASB is an appliance that provides access control services for cloud resources by enforcing identity policies for endpoints in its network.
Cloud Access Security Brokers (CASBs) are becoming essentials in enterprise organizations. A CASB can protect the sensitive data and applications in a cloud environment by providing access control services for cloud resources, while also enforcing organizational identity policies through endpoint security measures like encryption, configuration settings, and password requirements.
Zero-trust network access (ZTNA)
ZTNA is a security model that keeps an enterprise safe in today’s digital world. It has become the new norm for any company, who doesn't want to risk their sensitive data from being compromised.
A zero-trust network access (ZTNA) is a security model that replaces traditional access security using a client VPN. This model allows granular policies to be created based on the initiating device, initiating user and target user or resource. It also prevents compromised devices or users from accessing company resources and data.
In conclusion, SASE SD-WAN is the upgraded network security system for enterprises to protect their company information on a cloud based platform.