Advantages And Disadvantages Of Distributed Firewall

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Abstract—Firewall is a network system that used to protect one network from another network. It controls the network traffic based on some rules. Traditional firewalls control the traffic on inside network only. They can be categorized in to three main areas called packet filtering, stateful packet filtering and application proxies. Distributed firewalls filter the traffic from both the outside and the internal network. Distributed firewalls have some another advantages. They are, some protocols are difficult to process, conventional firewalls assumed that the internal network is secured, conventional firewalls are tough to manage because of the accessing of single points, distributed ones reduce the cost, detect more attacks, identify the risk or nonproductive behaviors and offering a brilliant network performance without affecting the security. Policy language, Policy distribution scheme, an authentication and encryption mechanism are the three components of a distributed firewall.…show more content…
Though distributed firewalls fill the gaps in…show more content…
So it is very risky situation. Intrusion detection systems should be very effective. Since network traffic is not on a single point those types of systems get ineffective. This can be happen when the hosts are in an attack also. In a distributed firewall intrusion detecting is not their job, but collecting the data is harmed by the above reasons. Sometimes distribution firewalls also have to face attacks. They can’t give 100 percent security. Another thing is distributed firewalls are not responsible for protecting legacy applications. This happens because old protocols can’t understand the cryptography that used in the distributed

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