What is the information security bridge? In this article, we will discuss more information in this title. Read this article so you can have knowledge of this study.
What is the Information Security Bridge?
An information security bridge is a software tool that is designed to link different networks to facilitate network communications. Also, information security bridges are also used to connect a local area network (LAN) to a wide area network (WAN).
An information security bridge serves as a gateway between two or more networks. It uses a protocol that allows for the conversion of data from one network protocol to another. In many cases, this is from an Ethernet protocol to a TCP/IP protocol.
Background
Information security bridges are often in environments that have multiple network protocols. This is common in an organization that has a legacy system that is running on an older network protocol.
The organization may choose to implement a new system that uses a newer protocol. To allow the two systems to communicate, the information bridge is used.
Creamer Media
Information bridge is a good tool to provide security in the computer network. This is because it can be used to filter and block certain types of network traffic and to prevent illegal access. Also, an information bridge may be used to isolate a local area network (LAN) from the Internet, or it may be to filter traffic that comes into or leaves a network.
However, an information bridge often operates at layer 2 of the Open Systems Interconnection (OSI) model for networking. This means that it does not examine the contents of the packets that are over the network but simply forwards them from one device to another.
Information security bridges can also be to restrict access to certain types of network traffic. Also, one common example is to prevent a particular type of application from receiving and transmitting data over the network.
An information bridge can be to monitor packets and drop those packets that match specific criteria, such as packets containing an address or port number for an illegal application.
How Does It Work?
Information security bridges are to handle packets at layer 2 of the Open Systems Interconnection (OSI) model for networking. Layer 2 is the data link layer or the media access control (MAC) layer. Also, layer 2 is the second layer of the seven-layer OSI model for networking.
Layer 2 handles the physical transmission of data between two devices. It also handles the addressing of the devices in the network, including their MAC addresses.
An information bridge filters traffic at layer 2 by examining the source and destination MAC addresses in each packet. If it is to do so, an information bridge will drop packets that have a destination address that is not valid for its network.
Conclusion
Information bridge is a good tool to provide security in the computer network. This is because it can be to filter and block certain types of network traffic and prevent unauthorized access.
However, an information security bridge often operates at layer 2 of the Open Systems Interconnection (OSI) model for networking. This means that it does not examine the contents of the packets that are over the network but simply forwards them from one device to another.
