Avaya XT Series - Planning NAT and Firewall Traversal with Avaya Room System XT Series

Planning NAT and Firewall Traversal with Avaya Room
System XT Series
The Avaya Room System XT Series fully supports NAT and firewall traversal, enabling you to
place the unit behind a NAT router or firewall and connect with other endpoints seamlessly. This
section describes the available methods to incorporate NAT and firewall traversal with XT Series:
• Using a Avaya HTTP server or a STUN public server for NAT and firewall traversal
When the XT Series hosts a videoconference with endpoints outside the enterprise (
Figure 9:
Using an HTTP/STUN Server for NAT and Firewall Traversal on page 34), it first queries an
HTTP or STUN server to discover its public IP address, then sends it to any external
endpoints wishing to join the conference. The external endpoints then answer the call using
the IP address provided. Configure the XT Series for HTTP or STUN autodiscovery. A STUN
server enables you to directly dial an endpoint behind a NAT or firewall by giving that
computer’s public internet address.
Figure 9: Using an HTTP/STUN Server for NAT and Firewall Traversal
This approach works well in simple NAT and firewall traversal deployments, typically used by
home offices and Small Medium Businesses (SMBs).
• Using (Avaya Meetings H.323 Edge) Avaya Meetings H.323 Edge or other H.460 server for
NAT/firewall traversal
Endpoints in the private network can communicate with public endpoints via an H.460 NAT/
firewall traversal server, like the Avaya Meetings H.323 Edge. Endpoints in the public network
Planning the Topology of the Avaya Room System XT Series Deployment
August 2020 Deployment Guide for Avaya XT Series 34
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