Manual
Table Of Contents
- Preface
- Introduction
- Process Summary
- Prerequisites
- Run the Service Setup Wizard
- VCS System Configuration
- Routing Configuration
- Pre-search Transforms
- Search Rules
- Task 8: Configuring Transforms
- Task 9: Configuring Local Zone Search Rules
- Task 10: Configuring the Traversal Zone
- Neighboring Between VCS Clusters
- Task 11: Configuring Traversal Zone Search Rules
- Task 12: Configuring the DNS Zone
- Task 13: Configuring DNS Zone Search Rules
- Task 14: Configuring External (Unknown) IP Address Routing
- Endpoint Registration
- System Checks
- Maintenance Routine
- Optional Configuration Tasks
- Appendix 1: Configuration Details
- Appendix 2: DNS Records
- Appendix 3: Firewall and NAT Settings
- Appendix 4: Advanced Network Deployments
- Obtaining Documentation and Submitting a Service Request
- Cisco Legal Information
- Cisco Trademark
Task 12: Configuring the DNS Zone
The DNS zone is used to search for externally hosted systems (such as for business to business calling). Destination
aliases are searched for by a name using a DNS lookup.
To configure the DNS zone:
1. Sign in to the VCS Expressway.
2. Go to Configuration >Zones > Zones.
3. Click New.
4. Configure the fields as follows (leave all other fields with default values):
Field name Value
Name
Enter DNSZone for example
Type DNS
H.323 Mode On
SIP Mode On
Fallback transport protocol TCP
Include address record Off
5. Click Create zone.
Task 13: Configuring DNS Zone Search Rules
The DNS search rule defines when the DNS zone should be searched.
A specific regular expression is configured which will prevent searches being made using the DNS zone (i.e. on the
public internet) for destination addresses (URIs) using any SIP domains which are configured on the local network
(local domains).
To create the search rules to route via DNS:
1. Sign in to the VCS Expressway.
2. Go to Configuration > Dial plan > Search rules.
3. Click New.
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Cisco VCS Expressway and VCS Control - Basic Configuration Deployment Guide
Routing Configuration