Firewall Analyzer's Rule Impact Analysis feature does the following:
With these reports, you can identify threats, understand firewall rule risk, remove anomalies, and optimize the proposed new rule. After running the rule impact analysis and clearing out all the complications, you can finally implement the rule in your firewall.
Firewall Analyzer's Rule Impact feature lets you perform in-depth impact analysis for a proposed new rule. Before you make the new rule live, you can use the Rule Impact feature to determine if the proposed new rule is going to impact the existing rule set negatively. Thus, Firewall Analyzer acts as an efficient firewall rule planning tool.
Firewall rules play a crucial role in efficient network security management. Before adding a rule, it's vital to ensure that the proposed new rule won't negatively impact the network.
With firewall rule impact analysis, security admins get a detailed overview of the possible effects of adding a new rule. An important aspect of firewall rule impact analysis is that it's proactive in nature, as it works to prevent security loopholes in the network altogether.
The level of protection provided by a firewall directly depends on the quality of its policy. So, it's important that security admins constantly optimize firewall rules and adhere to a robust firewall policy design. However, configuring firewall rules is neither a one-time activity, nor is it a simple task.
An organization typically has hundreds of rules, and not all firewall rules are independent from each other. In fact, most rules have a distinct impact on a set of other rules and it is important to get the basic firewall policy design spot-on. The simplest error can trigger a massive security loophole that either allows malicious traffic to sneak in or blocks legitimate traffic and disrupts normal business.
This is why security admins need to thoroughly study the firewall rule design and measure the consequences of adding a new rule before making the changes live in the firewall (firewall policy rule planning and design).
Refer the 'Firewall Rule Administration' page for more details.
Refer Configure Firewall Rules page to know how to configure firewall rules.
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