Top 8 Firewalls Tools

Fortinet FortiGateCheck Point NGFWpfSenseCisco ASA FirewallSophos XGCisco Firepower NGFW FirewallCheck Point CloudGuard Network SecurityPalo Alto Networks NG Firewalls
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    The solution is stable.Some of the valuable features are the firewall, IPS, web filter, and gateway capabilities. Additionally, it is easy to use and flexible.
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    The initial setup is very straightforward. We have found the solution to be scalable.
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    A free firewall that is a good network security appliance. A valuable feature is that the solution is open source.
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    The features that are most valuable within the firewall are the IPS as well as the Unified Communications. We also really like the dynamic grouping.The product is quite robust and durable.
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    The solution is very easy to use and straightforward. The installation is easy. There is a wizard that can be used for a single connection making it simple and if you have multiple connections you can configure it manually.
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    The integration of network and workload micro-segmentation helps a lot to provide unified segmentation policies across east-west and north-south traffic. One concrete example is with Cisco ACI for the data center. Not only are we doing what is called a service graph on the ACI to make sure that we can filter traffic east-west between two endpoints in the same network, but when we go north-south or east-west, we can then leverage what we have on the network with SGTs on Cisco ISE. Once you build your matrix, it is very easy to filter in and out on east-west or north-south traffic.
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  9. The most valuable features are the VPN Blade, IPS Blade, the URL filtering, and the Applications Control Blade. The most valuable feature is the centralized dashboard, which is used for managing all of the Check Point Security Gateways.
  10. Some of the valuable features in this solution are traffic monitoring, GUI functionality, and it very easy to troubleshoot if there is any problem that happens.

Why Use Firewall Software?

Firewalls are key to network security. They prevent unwanted visitors from entering your network as well as preventing in-network users from accessing websites or servers that could potentially be dangerous. It is essential to have firewall software to protect your organization’s data devices.

Who Uses Firewall Software?

Firewalls are an essential network security component, used in both personal settings as well as by businesses that need to protect large networks of computers, servers, and employees. Within a company, the digital security team is the main user of firewall solutions, and network administrators have the greatest control and use of firewall software.

What Makes the Best Firewall?

When IT Central Station users were asked about what makes the best firewall, they described a number of factors that will help anyone make the right choice. Some security professionals want to know what is the best free firewall? IT Central Station reviews suggest that this is a question that should be asked only after one has assessed many basic requirements about usability and features first.

Visibility is offered as one of the most critical aspects of an effective firewall. Users want global reports and traffic visibility as well as application visibility. IT Central Station members also want the firewall to provide visibility into specific users’ behaviors. Visibility as a key point of value cuts across different types of solutions, including Windows firewalls, firewall software and network firewalls.

Ease of use and simplicity of administration also rated as high priorities for firewall buyers. A firewall should be easy to manage and configure. Easy installation is essential, as is integration. According to IT Central Station reviewers, firewalls typically function in complex, heterogeneous security environments. In parallel, solid vendor support is important. Reviewers noted that the first line of response to an issue with a firewall is almost always an in-house technical resource. That resource needs to be trained easily. If training is too cumbersome or if the firewall admin is a hard-to-find hire, the department will suffer.

Firewall users list many specific functions as “must haves.” These include intrusion protection (IPS), VPN, high throughput, data loss prevention, SSL, IPSEC, application control and web content filtering. Some users want a firewall to easily integrate with an LDAP Server or Radius Server. Anti-spam is desirable, as is anti-virus and anti-spyware protection. Users emphasize the importance of IPv6 native support as well as traffic shaping and bandwidth control.

Kinds of Firewall Software

Firewalls can either be either hardware or software. It’s best to have both kinds. A physical (hardware) firewall is a piece of equipment that you install between a gateway and the network. A software firewall is a program that you install on each computer, that regulates traffic through applications and port numbers.

  • Packet-filtering firewalls are the most common kind. They examine packets and block those that do not match the established security rules. (Usually this means that the packet’s source and destination IP addresses must match those that are “allowed.”) There are two kinds of packet-filtering firewalls. Stateless firewalls lack context when examining packets independently of one another. This makes them easy targets for cyber criminals. Stateful firewalls, on the other hand, remember information about packets that have previously passed and therefore are considered more secure. Packet-filtering firewalls provide very basic protection but they can be limited.
  • Next-generation firewalls (NGFW) have an added functionality in addition to traditional firewall technology. This might include intrusion prevention systems, encrypted traffic inspection, and antivirus NGFW also includes DPI ( deep packet inspection, which examines the data within the packet itself rather than only looking at packet headers. This enables users to identify, categorize, or block packets with malicious data more effectively.
  • Proxy firewalls filter network traffic at the application level. The proxy, unlike a basic firewall, acts as an intermediary between two end systems. Proxy firewalls use both deep impact and stateful inspection to detect malicious traffic.
  • Network address translation (NAT) firewalls operate on routers. They allow multiple devices with independent network addresses to use a single IP address to connect to the internet. This keeps the individual IP addresses hidden, providing greater security because it means that attackers can’t capture specific details. NAT firewalls are similar to proxy firewalls in that they act as intermediaries between a group of computers and outside traffic.
  • Stateful multilayer inspection (SMLI) firewalls filter packets at the transport, application, and network layers, and compare them against known trusted packets. Like NGFW firewalls, SMLI firewalls examine the entire packet and allow them to pass only if they pass each layer individually. SMLI firewalls examine packets to ensure that there is only communication with trusted sources.

Firewall Software Features

  • Access Control - Firewall solutions act as a gatekeeper, only allowing authorized users to enter the network.
  • Custom Restriction - Network administrators are able to dictate what servers and websites network users are allowed to access. These can be set to block non-business-related websites as well as to block IP addresses or servers of potential or known threats.
  • Alerts - If there is an attempt at unauthorized access, firewall solutions will send an alert about it to network administrators detailing the breach. This both helps admins understand potential threat sources as well as letting them know who within the network may be trying to access sources they shouldn’t be.
  • Automation - One benefit of firewall software is the ability to automate some of the menial tasks of network administration, such as rule-testing and monitoring. This leaves administrators with time to focus on other things.
  • Reporting - Some firewall tools will document all kinds of data, such as logins, access points, penetration attempts, and security failures.
  • Integration Capabilities - Check prospective products’ integrations lists to see how they match up with your company’s existing IT strategy and software. Various integrations and plugins can provide functions such as content filtering, device support, and data integration.
Find out what your peers are saying about Fortinet, Check Point, Netgate and others in Firewalls. Updated: July 2021.
523,742 professionals have used our research since 2012.