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Network Infrastructure Magazine | Monday, April 19, 2021
A combination of built-in security features and additional precautions can protect the software-defined branch network from malware and data loss.
FREMONT, CA : Software-Defined Wide Area Networks (SD-WAN) have become a popular option in developing networking as the digital workforce is becoming increasingly mobile and businesses branch out as they expand. SD-WAN improves versatility, scalability, efficiency, and agility by applying the advantages of software-defined networking (SDN) to conventional router-centric, hardware-based networks.
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With the advantages SD-WAN offers to businesses, it also brings a new range of security concerns. Here are some of the ways to keep those threats away and make maximum use of SD-WAN.
Issues with SD-WAN security
SD-WAN allows users in branch offices to connect to an enterprise's network over the internet through a vast web of connected devices. The proliferation of endpoints and IT sprawl adds to network security's complexity. Even a single unsecured entry point will result in a severe security breach.
Even though most SD-WAN solutions have security features out of the box, they must not be used as a stand-alone solution for network security. To understand what safety features the company requirements for the network, they will have to figure out what features are included in their SD-WAN solution.
Ways to enhance SD-WAN security
SD-WAN security offers some much-needed safety, but businesses must go above and beyond to ensure that threats are adequately detected and mitigated.
Next-Gen Firewalls
The majority of SD-WAN solutions have a built-in firewall. These firewalls could be efficient at restricting unauthorized access based on IP addresses and ports, but they lack the end-to-end coverage that branched out business's requirement.
The solution to such problems is the Next-generation firewalls (NGFW). Intrusion Detection and Prevention Systems (IDPS), deep packet inspection (DPI), sandboxing, data loss prevention (DLP), and other innovative features are included in this modern firewall.
SSL Inspection
While SSL-encrypted traffic accounts for the vast majority of internet traffic, it is much more challenging to inspect at scale. As a result, hackers often conceal malware in SSL traffic because they know it will be harder to detect.
Intercepting SSL communications between the server and the client is possible with some solutions. Antivirus scanning and web filtering are then used to decrypt and analyze the traffic. When the traffic gets cleared, it is then redirected to its destination.
Regular System Updates and Patches
Cybercriminals are always searching for new ways to infiltrate into networks. As a result, software and firmware vendors often release updates and patches to prevent hacking attempts. These updates are not always performed automatically, due to which administrators must not fall behind on updates. It is highly crucial to servers and applications. A patch management tool will help companies to keep track of the patches.
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