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WatchGuard Auth Applet
Port 4100 is typically associated with the WatchGuard Authentication Applet, which facilitates user authentication processes within WatchGuard network security devices. This service enables clients to communicate authentication credentials to a WatchGuard firewall or security appliance, granting trusted network access based on identity verification..
Overview:
Port 4100 serves as a communication channel for WatchGuard's proprietary authentication applet system. It is designed to handle user login information sent from browser-based or software interfaces to WatchGuard firewalls, helping enforce access control policies in enterprise environments.
Protocol Details:
Since both TCP and UDP flags are false for this port, it typically runs over an alternate or encapsulated communication method rather than traditional TCP/UDP-based transport. Frequently, it may utilize HTTP/S tunneling or proprietary messaging between the applet and firewall, leveraging other underlying protocols managed internally by the appliance.
Deployment:
The applet is embedded within administration interfaces or pushed dynamically to endpoints to authenticate users attempting to access protected resources. This integration supports granular user policy enforcement, session control, and potentially supports multi-factor authentication solutions. Administrators configure the applet within the WatchGuard appliance settings and monitor sessions for compliance.