NAT/Route mode with multiple external network connections

Getting started

 

 

NAT/Route mode with multiple external network connections

In NAT/Route mode, you can configure the FortiGate unit with multiple redundant connections to the external network (usually the Internet). For example, you could create the following configuration:

External is the default interface to the external network (usually the Internet).

Port 1 is the redundant interface to the external network.

Internal is the interface to the internal network.

DMZ is the interface to the DMZ network.

You must configure routing to support redundant Internet connections. Routing can be used to automatically redirect connections from an interface if its connection to the external network fails.

Otherwise, security policy configuration is similar to a NAT/Route mode configuration with a single Internet connection. You would create NAT mode firewall policies to control traffic flowing between the internal, private network and the external, public network (usually the Internet).

If you have multiple internal networks, such as a DMZ network in addition to the internal, private network, you could create route mode firewall policies for traffic flowing between them.

Figure 7: Example NAT/Route multiple internet connection configuration

FortiGate-800 Unit

Externalin NAT/Route mode 204.23.1.5

Internet

EscEnter

8

Port 1 64.83.32.45

NAT mode policies controlling traffic between internal and external networks.

Internal network

 

192.168.1.3

Internal

 

192.168.1.1

 

 

Route mode policies

 

controlling traffic between

 

internal networks.

DMZ

DMZ network

10.10.10.2

 

 

10.10.10.23

Transparent mode

In Transparent mode, the FortiGate unit is invisible to the network. Similar to a network bridge, all FortiGate interfaces must be on the same subnet. You only have to configure a management IP address so that you can make configuration changes. The management IP address is also used for antivirus and attack definition updates.

You typically use the FortiGate unit in Transparent mode on a private network behind an existing firewall or behind a router. The FortiGate unit performs firewall functions, IPSec VPN, virus scanning, IPS, web content filtering, and Spam filtering.

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Fortinet Inc.

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Fortinet 800F manual NAT/Route mode with multiple external network connections, Transparent mode

800F, 800 specifications

Fortinet, a leader in cybersecurity solutions, has made significant strides in fortifying enterprise networks with its FortiGate 800 and 800F series. These next-generation firewalls are designed to deliver high performance and security for organizations seeking to protect their critical assets while ensuring optimal network efficiency.

The FortiGate 800 and 800F series are built on Fortinet's proprietary Security Fabric architecture, which provides a consolidated approach to security. This architecture allows organizations to leverage seamless integration across various security solutions and services, enhancing visibility and control. With a focus on scalability, these models support various deployment scenarios—from branch offices to data centers—making them versatile options for organizations of any size.

One of the standout features of the FortiGate 800 and 800F series is their robust threat intelligence capabilities. Powered by FortiGuard Labs, these firewalls provide real-time threat intelligence that enables proactive threat mitigation and incident response. This not only helps to defend against known threats but also enhances the firewall’s ability to identify emerging threats, ensuring comprehensive protection.

The series boasts impressive performance metrics. The FortiGate 800F can process up to 20 Gbps of firewall throughput and 1.5 million concurrent sessions, making it a suitable choice for high-performance environments. Additionally, the built-in SSL inspection capabilities allow organizations to decrypt and inspect encrypted traffic, which is crucial for detecting hidden threats.

The FortiGate 800 and 800F also feature advanced security technologies, including Intrusion Prevention System (IPS), antivirus, web filtering, and application control, all managed through a unified interface. This centralization simplifies management and reduces administrative overhead, allowing IT teams to focus on strategic initiatives.

Another significant characteristic of the FortiGate 800F is its energy efficiency. The design includes hardware optimizations that not only enhance performance but also reduce power consumption, aligning with the growing emphasis on sustainability practices.

In summary, the Fortinet FortiGate 800 and 800F series are comprehensive network security solutions that leverage advanced technologies to provide organizations with the security, performance, and flexibility necessary in today's threat landscape. With their robust threat intelligence and high throughput capabilities, these firewalls are well-suited for enterprises looking to fortify their defenses against an ever-evolving array of cyber threats.