Polycom PVX Software Manual page 13

Internet and Intranet Calling with Polycom PVX 8.0.1
Setting up a DMZ
Some users may prefer to set up a PVX computer in a demilitarized zone (DMZ). A DMZ
can be a quick way to configure PVX without opening specific ports individually.
DMZ is a firewall configuration that opens all of the ports through the router to a specific
computer and places the computer outside of the firewall. Other devices within the
network remain within the protection of the firewall. By isolating the computer with open
ports, DMZ protects the rest of the network from exposure. If outside users penetrated the
security of the DMZ computer, they could not gain access to any other computers on the
network.
However, PVX requires only a limited number of open ports, so the advantage of opening
all ports by running in a DMZ is minimal. If you choose to set up a DMZ, please refer to
your router's user manual for instructions.
Setup for Multiple Network Adapters
Many PVX users have computers with more than one connection to a network. For
example, a laptop user may connect most of the time via an ethernet cable at an office desk.
The same user may connect the laptop less often via a wireless connection from other
locations in the workplace, and least frequently by VPN from home.
The Microsoft Windows Control Panel lists your connections in the order in which they are
accessed by network services. These settings are available in the Advanced Settings in the
Network and Dial-Up Connections.
By default, PVX 8.0.1 will use the Windows order of preference when attempting to
connect. If the first adapter is unavailable, PVX will try the next adapter and continue
through the list until an adapter is available. The Windows order of preference is
convenient for most users.
However, if you want PVX to access a specific connection first, you can select the
connection you want to be used. For example, if your network has a dedicated connection
for video traffic, you can configure PVX to use the video adapter. If the specified adapter is
unavailable, PVX will try the next adapter.
To use the Windows default adapter:
1. In PVX, click Setup > Network to open the Network tab.
On the Network Setup page, click the Connection tab.
2.
3. Select Use Windows default adapter.
4. Click Apply.
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