When planning a Lync Server environment, any remote access or federation features require significant firewall configuration to ensure the features work correctly and to properly secure the infrastructure. Many different firewall vendors, devices, and configurations can be used to achieve the goal.
The key points to keep in mind are as follows:
• The Edge Server has two network adapters to account for, and two different sets of rules must be created.
• The Edge Server requires at least two network adapters. One is internal facing and communicates with the internal Front-End Servers, Directors, and clients, and the second adapter communicates with the external traffic from the Internet.
Organizations might have a dedicated ...