9.Do not select the Allow Fragmented Packets check box. Large IP packets are often divided into fragments before they are routed over the Internet and then reassembled at a destination host. Because hackers exploit IP fragmentation in Denial of Service attacks, the SonicWALL blocks fragmented packets by default. You can override the default configuration to allow fragmented packets over PPTP or IPSec.

10.Enable Bandwidth Management, and enter the Guaranteed Bandwidth in Kbps.

11.Enter the maximum amount of bandwidth available to the Rule at any time in the Maximum Bandwidth field. Assign a priority from 0 (highest) to 7 (lowest).

12.Click Update. Once the SonicWALL has been updated, the new rule appears in the list of Current Network Access Rules.

Tip Although custom rules can be created that allow inbound IP traffic, the SonicWALL does not disable protection from Denial of Service attacks, such as the SYN Flood and Ping of Death attacks.

For example, to configure the SonicWALL to allow Internet traffic to your Web server with an IP address of 208.5.5.5 (Standard mode), create the following rule:

1.Verify that HTTP has been added as a Service as outlined previously.

2.Click the Rules tab, and click Add New Rule....

3.Select Allow, then Web (HTTP) from the Service menu.

4.Select WAN from the Ethernet Source menu, and leave the Addr Range Begin and Addr Range End as they appear.

5.Select LAN from the Ethernet Destination menu, and enter in the IP address of the Web server, 208.5.5.5 in the Addr Range Begin field. No IP address is added in the Addr Range End since the destination is not a range of IP addresses.

6.Select always from the Apply this rule menu.

7.Enter a value (in minutes) in the Activity Timeout in Minutes field.

8.Do not select the Allow Fragmented Packets check box.

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SonicWALL Internet Security Appliances manual Select always from the Apply this rule menu
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Internet Security Appliances specifications

SonicWALL Internet Security Appliances are pivotal solutions aimed at safeguarding networks from an ever-evolving array of cyber threats. Designed for small to medium-sized businesses, as well as enterprises, these appliances deliver robust security and high-performance capabilities.

One of the main features of SonicWALL Internet Security Appliances is their Unified Threat Management (UTM) functionality. This integrated approach allows organizations to manage multiple security measures, including firewall protection, intrusion prevention systems (IPS), and antivirus capabilities, within a single device. This consolidation simplifies security management and reduces the risk of vulnerabilities from disparate systems.

Another significant technology found in these appliances is Application Control. This feature enables administrators to monitor and regulate the applications and services used within their networks, ensuring that bandwidth is allocated efficiently, and potentially harmful applications are blocked. Coupled with Content Filtering, SonicWALL offers granular policies to restrict access to inappropriate or non-work-related content, enhancing overall productivity while maintaining security.

SonicWALL appliances also utilize advanced cybersecurity technologies like SonicWall Capture Threat Assessment and Capture Advanced Threat Protection. These solutions leverage artificial intelligence to identify and remove sophisticated malware and ransomware threats before they infiltrate the network. This proactive approach ensures that only safe email and web traffic is allowed through, providing comprehensive protection against advanced persistent threats.

Moreover, SonicWALL’s Global Management System (GMS) enables centralized control over multiple security devices, making it easy for IT teams to maintain a consistent security posture across various locations. This capability is especially beneficial for organizations with distributed networks, as it provides real-time visibility into network activity and security incidents.

The appliances are also designed with scalability in mind. Whether an organization grows or needs to adjust its security policies, SonicWALL appliances can be updated, expanded, or modified without significant disruptions. This flexibility makes them a long-term investment for any business focused on network security.

In addition, SonicWALL's user-friendly interface simplifies the deployment and management processes. With intuitive dashboards and reporting tools, administrators can easily track security events, analyze network traffic patterns, and respond swiftly to potential threats.

In summary, SonicWALL Internet Security Appliances combine essential features like Unified Threat Management, Application Control, and advanced threat protection technologies into a cohesive security solution. Their scalability, centralized management capabilities, and user-friendly interfaces make them an excellent choice for businesses aiming to strengthen their cyber defenses in a complex digital landscape.
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