Lync Edge

Lync Edge is the point where we make services such as Access Edge, A/V authentication, A/V Edge, Web Conferencing Edge, and XMPP proxy service available to the external users. We have the possibility to bind such services to three public addresses on the external interface of Edge, or to join them to three different ports joined to a single public IP. The decision between the configurations has an impact on costs and on the accessibility of the services.

The first solution requires three valuable public IPs dedicated to Edge, while the second one requires only one Internet address.

However, the latter design is more prone to difficulties that the access might face from the external networks because the ports that the external users will be required to open on Edge are out of the standard TCP/80 and TCP/443 that are allowed by almost all the enterprise proxies and firewalls.

Preparing Lync Edge

To deploy Lync Edge, we have to comply with the following requirements:

• Two network interfaces...