
18 Chapter 2 Setting up Digital Networking
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If DNS is not available you must do one of the following:
• If your digital network contains sites with sites other than BCM and CallPilot 100/150, you
must use a hosts file to provide consistent name mapping throughout the VPIM network. If
you use CallPilot 100/150, see “To create and install hosts files on CallPilot 100/150” on page
20.
• If your digital network contains, and will only contain, BCM or CallPilot 100/150 sites, you
can use IP addresses to create network sites. Refer to “To configure BCM to use IP addresses”
on page 18 or “To configure CallPilot 100/150 to use domain names or IP addresses” on page
19 to create network sites using IP addresses.
To configure BCM to use IP addresses
1 Ensure no DNS servers are currently configured. Refer to “To check that BCM is not
configured to use DNS” on page 19.
2 Enter the host name on the Business Communications Manager system. Refer to “To check
that a Host Name is entered on the BCM” on page 19.
3 Configure computers running Message Networking with the IP address of the Business
Communications Manager system.
Note: You can use a hosts file in combination with DNS in situations where DNS
is not available in all branch locations.
Note: The DNS servers must provide constant name mapping throughout the network.
Host files can be used to augment DNS if necessary. An instance where both hosts files
and DNS may be required is when a BCM is used as a gateway between a private
network and an ISP.
Note: If you are using a Business Communications Manager system system, you can
view the IP addresses of your system in Element Manager on the Domain Name Service
screen.
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