The presence of a firewall facilitates the guarding and controlling of incoming and outgoing data traffic, especially in network security. One type of firewall is a stateful inspection firewall, which has some functions and advantages.
The functions of a stateful inspection firewall include monitoring connection status to prevent attacks. Moreover, the advantages include increased efficiency, increased security, and strong logging.
This article will give you information on stateful inspection firewalls, including definitions, functions, and the advantages they have.
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What is a Stateful Inspection Firewall?
A stateful inspection firewall is a type of firewall that works by monitoring and tracking the state of active network connections. These devices not only check the headers but also analyze the entire context of the connection to determine whether the packet is allowed to pass through the firewall or not.
The Functions of a Stateful Inspection Firewall
The stateful inspection firewall has several functions, from monitoring connection status to preventing attacks. Here are some of its functions:
- Monitoring connection status: The status of each network connection, such as IP address, port number, and protocol used, will be tracked and monitored.
- Analyzes packets based on context: Examines each packet separately and also considers the context of the ongoing connection.
- Preventing attacks: Detects and prevents various types of network attacks such as spoofing, denial-of-service (DoS), and man-in-the-middle.
The Advantages of a Stateful Inspection Firewall
The stateful inspection firewall has several advantages, from increased efficiency, increased security to strong logging. Here are some of its main advantages in detail:
1. Increased efficiency
One of the advantages of a stateful inspection firewall is increased efficiency. The firewall does not need to re-examine each packet in the verified communication flow because the connection status is already tracked, resulting in increased efficiency.
2. Flexibility of security management
Flexible security management is another advantage of the stateful inspection firewall. Various security levels and network access permissions can be configured with this firewall, so network security can be managed more flexibly.
3. Increased security
By using a stateful inspection firewall, your network security system increases. This type of firewall is able to track network connection status and examine packet context so that it can detect and block sophisticated attacks.
4. Combination of security and performance
A stateful inspection firewall will not only provide security to your network, but also will not reduce usage performance. This type of firewall provides a good balance between maintaining network security and maintaining usage performance.
5. Strong logging
Another advantage of a stateful inspection firewall is that it has strong logging capabilities. This ability allows this type of firewall to track important aspects of network connections for analysis and audit purposes.
Those are the definitions, functions, and advantages of a stateful inspection firewall that you need to know. However, it should be noted that this type of firewall has more implementation costs, requires more resources, complicated configuration, and no user authentication.
Another thing to note is that firewalls on the market must pass the certification test from the Directorate General of Digital Infrastructure (DJID). Firewall regulation is based on the Ministerial Decree (KEPMEN) No. 60 Tahun 2022, which requires all radio frequency-based devices to meet specific technical standards before being sold in the country.
With a DJID certification, users can feel calm about using a firewall whose quality and security are guaranteed. For manufacturers or importers of firewalls, obtaining certification from DJID is a mandatory step before the device can be officially marketed in Indonesia.
To simplify the certification process, Type Approval Certification Services for ICT Products are available to assist with this process as a reliable solution. -UN.
