In a dual NIC configuration, you use two network interfaces for connectivity to two separate network segments. One network segment is used for switch connectivity to Communication Manager, and the other network segment for is used for client and media connectivity (LAN, VLAN, or WAN). The NICs must be on separate networks or network segments. In a dual NIC configuration, the client network is referred to as the production (or public) network, and the Communication Manager segment is referred to as the private network segment.

The private network segment should contain one subnet; this is the only supported configuration. You can configure any default gateway for public and private network segments. However, Avaya recommends using a public gateway as the default gateway to enable access to AE Services through both public and private network segments. After deployment, you must add static routes through CLI to make AE Services accessible from the private network segment.