Port-to-application mapping definition
Port-to-application mapping (PAM) refers to a process that associates specific network ports with the applications or services that use them. This helps manage the network traffic and ensure that data packets reach the correct application.
See also: Dynamic ports, Port mapper
How does port-to-application mapping work?
- Port assignment. Each network application gets a port number. For example, web servers typically use port 80 for HTTP and port 443 for HTTPS.
- Configuration. Network devices such as routers and firewalls are configured to recognize and allow traffic on these ports for the designated applications.
- Traffic filtering. Incoming and outgoing traffic is filtered based on port numbers. Because only traffic destined for the assigned ports is allowed to reach the corresponding applications, MAP helps prevent unauthorized access.
- Monitoring and logging. Continuous monitoring helps identify potential security threats and optimize network performance.
When to use port-to-application mapping (PAM)
PAM is reliable and secure. But while it's a perfect choice if you prioritize security and predictable traffic management, PAM is also complex and difficult to scale. As an alternative, dynamic port allocation offers flexibility and efficiency. Network segmentation and security groups can offer both security and scalability, however, it also introduces management overhead, especially in highly segmented networks.
