
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, you must use a hosts file to
provide consistent name mapping throughout the VPIM network.
• If your digital network contains, and will only contain, BCM sites, you can use IP addresses to
create network sites. Refer to “To configure BCM to use IP addresses” on page 18 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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