Enterprises are turning to next gen firewall for greater protection due to the complexity of modern cyberattacks and innovative hacking tactics. To exploit apps, new web-based malware and intrusion attempts overcome perimeter safeguards. Malicious emails or phishing techniques are vulnerable to users because the risks are hidden inside the text and transported across the network undetected.
Traditional firewalls used to simply follow online protocols and were incapable of distinguishing between different types of web traffic. They were compelled to accept or reject all traffic due to their incapacity to analyse network packet contents and distinguish genuine business applications and threats.
Protection based on ports, protocols, and IP addresses was no longer possible. Businesses required a more powerful security system that was not limited to IP addresses. Newer rules for managing website and application usage within a network were also required. As a result, next-generation firewalls (NGFWs) with new technologies emerged, promising deeper inspection capabilities and improved control over particular network applications.
Every network expert should be aware of the top five advantages next-generation firewalls have over traditional firewalls.
1. It’s multipurpose.
Traditional firewalls offer basic packet filtering, network and port address translations, stateful inspections, and virtual private network compatibility. They are, however, limited to the OSI model’s Data Link Layer and Transport Layer.
In addition to traditional firewall functionality, next-generation firewalls offer integrated intrusion detection and protection systems (IDS/IPS) that identify attacks based on traffic behaviour, threat signatures, or anomalous activities. This feature allows for a more thorough examination of network data and improved packet-content filtering up to the application layer.
2. Application knowledge
To limit application access and monitor specific dangers, traditional firewalls often block common application ports or services on a network. However, as network connectivity becomes more sophisticated, many programmes use many or different ports, making classical firewalls incredibly difficult to identify the targeted port.
Furthermore, these ports are utilising in a variety of other ways, such as tunnelling, which encapsulates a network protocol within packets delivered by a second network and de-encapsulates it at the destination.
To combat this, next-generation firewall devices track traffic from layer 2 to layer 7 and are capable of determining what is being deliver or receive. If the content is acceptable, it is forward; otherwise, it is being block.
Companies can also define policies based on the user and the application with application awareness. Allowing people to access Facebook but not Facebook Chats, for example.
3. Infrastructure improvements
New threats require the purchase of a new security appliance, increasing costs and time spent maintaining and updating each device.
With changeable IP addresses, identifying and managing traffic becomes a convoluted tangle of defining thousands of rules. Furthermore, these devices lack the necessary controls and security for content, programmes, or even people.
NGFWs use a single device or console to deliver integrated antivirus, spam filtering, deep packet inspection, and application control. There are no additional devices require, minimising infrastructure complexity.
4. Threat avoidance
NGFWs offer antivirus and malware protection that is automatically updating anytime new threats are found, unlike traditional firewalls. By limiting the programmes that run on it, the NGFW device also reduces attack vectors.
It then examines all of the allowed apps for any hidden vulnerabilities or data leaks, as well as mitigating dangers from unfamiliar apps. This also aids in bandwidth reduction by removing any unnecessary traffic, which is impossible with traditional firewalls.
5. Network bandwidth
Though many traditional firewall companies state that each port has a particular throughput (typically a gigabit), the reality is somewhat different.
When a large number of protection devices and services are enabling, the network speed suffers. By the time the traffic reaches the end user, the claim speed has been reduce by about a third.
In contrast, regardless of the amount of protection services, next gen firewall throughput remains constant.
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