2. Configuring the Firewall v18 - Basic Certification
This module, explains all about what network traffic 3CX generates, how to set up and configure your Firewall, which ports 3CX uses as well as how to check if you have configured everything correctly.
2.1 Setup the Firewall
2.2 NAT & Port Preservation
2.3 SIP ALG
2.4 Setup for Provider, SBC, Bridges
2.5 Setup Remote IP (STUN)
2.6 Validation
Presented in Part 1 of our Basic Training, in conjunction with all the reading material provided on the 3CX website (https://www.3cx.com/3cxacademy/videos...) provides you with all the knowledge to pass the Basic Certification test.