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Hoot and Holler over V
3
PN Configuration
Example
This document provides a configuration example that illustrates a basic multicast-based voice
application over a Cisco Virtual Private Network (VPN).
Contents
•
Introduction, page 1
•
Prerequisites, page 2
•
Configure, page 3
•
Verify, page 17
•
Troubleshoot, page 40
•
Related Information, page 43
Introduction
This document provides a configuration example for Cisco Voice and Video over VPN (V
3
PN). The
voice application used in this example is Hoot and Holler, which is typically used in trading floor
financial institutions for communications to branch offices. The configuration scenario emphasizes
implementation of the quality of service (QoS) and VPN capabilities; the configuration has the following
characteristics:
•
All traffic between two client branch sites and headquarters passes through a VPN of IPSec-
encrypted tunnels.
•
This implementation of Cisco V
3
PN features the use of Protocol Independent Multicast (PIM) in
Sparse Mode and Auto-RP. The routing protocol used to transport traffic is Open Shortest Path First
(OSPF).
•
The techniques used include Internet Key Exchange/Dead Peer Detection (IKE/DPD), split
tunneling, and group policy on the server with Domain Name System (DNS) information, Windows
Information Name Service (WINS) information, domain name, and an IP address pool for clients.
•
Headquarters uses a Cisco 3800 series router with an ATM interface.
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