Stateful and Stateless firewalls appear to be familiar but they are way different from each other in terms of capability, functions, principles, etc. There are different types of firewalls and the incoming and outgoing traffic follows the set of rules organizations have determined in these firewalls. The main concern of the users is to safeguard the important data and information and prevent them from falling into the wrong hands. To secure that, they have the option to choose among the firewalls that can fulfill their requirements. they are looking for. The firewall provides critical protection to the business and its information.
This firewall monitors the full state of active network connections. A stateful firewall tracks the state of network connections when it is filtering the data packets. These firewalls can watch the traffic streams end to end. Stateful firewalls are aware of the communication path and can implement various IP security functions such as tunnels or encryptions. These firewalls are faster and perform better under heavier traffic and are better in identifying unauthorized or forged communication.
Stateful Firewall inspects packets and if the packets match with the rule in the firewall then it is allowed to go through. The packets which are approved by this firewall can travel freely in the network.
Could be The example is the Transport Control Protocol(TCP.) It saves the record of its connection by saving its port number, source, and destination, IP address, etc.
This firewall watches the network traffic and is based on the source and the destination or other values. They have no data on the traffic patterns and restrict the pattern based on the destination or the source. It is also termed as the Access control list ( ACL). This firewall does not inspect the traffic. It just works according to the set of rules and filters.
Stateless firewalls monitor the incoming traffic packets. They allow or deny packets into their network based on the source and the destination address, or some other information like traffic type. They just monitor some basic information of the packets and restriction or permission depends upon that.
An example of a Stateless firewall is File Transfer Protocol (FTP). This is the most common way of receiving the sending files between two computers..
Stateful firewalls are smarter and responsible to monitor and detect the end-to-end traffic stream, and to defend according to the traffic pattern and flow. It filters the packets based on the full context given to the network connection. These firewalls are faster and work excellently, under heavy traffic flow. They are also better at identifying forged or unauthorized communication.
On the other hand, a stateless firewall is basically an Access Control List ( ACLs) that contains the set of rules which allows or restricts the flow of traffic depending upon the source, IP address, destination, port number, network protocols, and some other related fields. This firewall doesn’t interfere in the traffic flow, they just go through the basic information about them, and allowing or discard depends upon that. But there is a chance for the forged packets or attack techniques may fool these firewalls and may bypass them.
Stateful firewall advantages-
Stateful firewall disadvantages-
Stateless firewall advantages-
Stateless firewall disadvantages-
There are various firewalls present in the market nowadays, and the question to choose depends on your business’s needs and nature. The firewall provides security for all kinds of businesses. It is up to you to decide what type of firewall suits you the most.
Stateless firewalls are cheaper compared to the stateful firewall. A small business may not afford the cost of a stateful firewall. Small businesses can opt for a stateless firewall and keep their business running safely. The traffic volumes are lower in small businesses, so is the threat. The fast-paced performance with the ability to perform better in heavier traffics of this firewall attracts small businesses. Few trusted people in a small office with normal and routine capabilities can easily go along with a stateless firewall.
Mainly Stateful firewalls provide security to large establishments as these are powerful and sophisticated. Because of the dynamic packets filtering, these firewalls are preferred by large establishments as they offer better security features. Stateful firewalls are powerful. They, monitor, and detect threats, and eliminate them. Large corporations opt for a stateful firewall because it provides levels of security layers along with continuous monitoring of traffic.
In the end, it is you who has to decide and choose. But it is necessary to opt for one of these if you want your business to run securely, without the risk of being harmed. By implementing the firewall you can easily avoid unnecessary headaches and loss that can occur due to unauthorized or forged communication. If you plan to build your career in Cyber Security and learn more about defensive cybersecurity technologies, Jigsaw Academy’s 520-hour-long Master Certificate in Cyber Security (Blue Team) is the right course for you…