Cisco ISDN GW 3241 Manual de usuario descargar pdf (Pagina 67)

Chapter 12 Using firewalls

Introduction

This chapter describes the Codian video firewall solution and how it is implemented. It also provides some

information that you might require if you are using Codian products in conjunction with third-party

firewalls.

The Codian video firewall

If you have video conferencing users outside of your company network, Codian recommends that you use

the Codian video firewall solution. Such users can include:

 conference participants

 streaming conference viewers

 users uploading or downloading files to the IP VCR using either FTP or HTTP

The Codian video firewall allows hosts (video conferencing endpoints, PCs, laptops, IP telephones, etc.) on

both local and public networks to connect to the MCU or IP VCR, without any traffic from either network

being able to enter the other network. This provides full video conferencing functionality to local and

public hosts while maintaining complete network security.

The Codian video firewall is available on all MCU and IP VCR units if you have the feature key and have

activated it. You can either purchase your MCU or IP VCR with the feature pre-enabled or purchase the

activation key from your reseller later.

Port functionality in the video firewall

In its default state, Port B is disabled on the MCU and IP VCR. The activation of the video firewall feature

allows Port B to be enabled. In a typical deployment of the video firewall, Port A is connected to the local

network and Port B is connected to the Internet. This is because Port B cannot use DHCP.

Figure 19 shows a typical deployment of the video firewall.

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Cisco ISDN GW 3241 Manual de usuario Pagina 67