Manual

Introduction
Cisco Expressway is designed specifically for comprehensive collaboration services provided through Cisco
Unified Communications Manager. It features established firewall-traversal technology and helps redefine
traditional enterprise collaboration boundaries, supporting our vision of any-to-any collaboration.
This document describes how to configure an Expressway-E and an Expressway-C as the cornerstones of a
basic video infrastructure deployment.
n It takes the video network administrator through the series of tasks required to set up the Expressways and
then describes how to check that the system is working as expected.
n It provides the required DNS, NAT and firewall configuration information but assumes that the network
administrator has a working knowledge of configuring these systems.
Detailed reference information is contained in this document’s appendices:
n Appendix 1: Configuration details [p.36] lists the Expressway configuration details used in this document.
n Appendix 2: DNS records [p.40] describes the DNS records required for this example deployment.
n Appendix 3: Firewall and NAT settings [p.42] includes details of required NAT and firewall configurations.
This document describes a small subset of the numerous NAT and firewall deployment options that are
made possible by using the Expressway-E dual network interface and NAT features.
n Appendix 4: Advanced network deployments [p.46] explains how to deploy your system with a static NAT
and Dual Network Interface architecture.
Descriptions of system configuration parameters can be found in Expressway Administrator Guide and the
Expressway web application’s online field help and page help .
This document does not describe details of how to deploy a cluster of Expressways. For more details on
clustering, see Expressway Cluster Creation and Maintenance Deployment Guide.
To configure your Expressway system for Unified Communications services, see Unified Communications
Mobile and Remote Access via Expressway Deployment Guide.
Note that endpoints or other devices cannot register to the Expressway.
Cisco Expressway Basic Configuration Deployment Guide (X8.5.2) Page 4 of 57
Introduction