Firewall is one of the most important network protection equipment, with very strong anti-attack immunity, it can play an important role in enterprise internal network security protection. Next, ETU-LINK will introduce the firewall equipment and optical module collocation plan to you.

Firewall is a kind of equipment which is used for security management and screening for enterprise users, and helps computer network build a relatively isolated protective barrier between internal and external networks, so as to protect the security of user data and information. In addition to the traditional firewall function, it also integrates deep security defense functions such as IPS, AV and bandwidth management, which can provide users with a perfect integrated security solution.

The firewall can prevent various attacks from external networks, and can also be used as an internal network access control device to isolate areas with different security levels.

The firewall in the internal network mainly plays the following two roles: one is to authenticate the application. Many actions in the internal network have the characteristics of remote, and can only be carried out through relevant authentication under restricted conditions; the second is to record access records. Avoid self-attack and form a security strategy.

The firewall applied to the external network mainly plays its preventive role. The external network can enter the internal network only when the firewall is authorized. When setting up a firewall for the external network, it must be comprehensive, so that all network activities on the external network can be monitored by the firewall. If there is an illegal intrusion from the external network, the firewall can actively refuse to provide services for the external network.

At present, there are many types of firewall products with slightly different functions, but most of their optical interfaces are gigabit and 10 gigabit interfaces. The following are the optical transceiver models recommended by ETU-LINK that are commonly used in firewalls.

The combination of firewall equipment and ETU-LINK’s module can protect your network security. With the continuous improvement of software and hardware processing capacity and network bandwidth, the data processing capacity of firewall is also improving. Especially with the development of multimedia streaming technology (online video) in recent years, the processing delay of firewall must be smaller and smaller.