How To Implement Network Segmentation?

What is Network Segmentation?

Network segmentation in computer networks is defined as the process of dividing a computer network into smaller, isolated segments or subnetworks. Sometimes, network segmentation is also referred to as network isolation or network segregation. Each segment contains a specific group of devices or resources and is separated from other segments by network devices such as routers, switches, or firewalls....

What is Network Segmentation Used for?

Network segmentation has several benefits for organizations. It does not have a single purpose, but primarily it is used to organize networks. Segmentation also allows for more efficient use of bandwidth by reducing the size of broadcast domains and getting rid of unnecessary traffic on the network. Another benefit of having a segmented network is that it enhances security by reducing an organization’s attack surface by not keeping all computers in the same network space. When you separate a network, all outbound and inbound traffic has to go through a layer-3 device, a router, and a firewall if there is one. If one team wants to contact another team over a network, the traffic passes through the router and firewall. Thus, segmentation gives a little more control to the organization over the traffic because the firewall can do things like deny unnecessary traffic....

How does Network Segmentation Work?

Network segmentation divides a network into different zones and controls each zone separately. This involves implementing traffic protocols to control what traffic flows through the segment and what is not permitted. It also addresses security protocols for each zone to ensure security and compliance. Network segments are marked with their specialized hardware to separate them and restrict system access to authorized users. Network settings provide rules that govern how subnetwork users, services, and devices interact with one another....

Types of Network Segmentation

1. Physical Segmentation...

Benefits of Network Segmentation

Improved Monitoring Network Segmentation reduces the complexity of the network. Useful for organizing networks Allows for more efficient use of bandwidth Enhances security and reduces the risk of cyber-attacks Improve Operational Performance...

How To Implement Network Segmentation?

Identify The Most Valuable Assets And Data. Classify Each Asset With A Label. Detect And Create A Map Of The Network And Data Flow. Determine How A Company Wants To Segment The Network. Deploy A Network Traffic Segmentation Gateway. Produce A Company-Wide Access Control Policy. Perform Audits, Reviews, And Automate Network....

Difference Between Network Segmentation and Microsegmentation

Network Segmentation Microsegmentation Network segmentation is defined as the process of dividing a computer network into smaller, isolated segments or subnetworks Further division of network segments into smaller, granular security zones, usually at the workload or application level. Network segmentation is generally considered a north-south network traffic control Microsegmentation is generally considered an East-West network traffic control Network Segmentation is implemented using VLANs, access control lists (ACLs), and firewall rules. They are implemented using software-defined networking (SDN) technologies and network virtualization platforms. Network Segmentation provides isolation between major network segments Microsegmentation provides finer-grained isolation within network segments,...

Frequently Asked Questions on Network Segmentation – FAQs

Which device provides microsegmentation in a data center network?...