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As an alternative to using a firewall, you can protect your Avaya IR system by configuring it on a LAN that has no physical connection to the Internet. Sometimes referred to as an "island LAN," this type of network environment has its own LAN switch and contains only those network elements with which the Avaya IR system needs to interface, such as speech servers, database servers, a backup server, and a Multivantage system (for VoIP connectivity and ASAI feature functionality). Because this LAN has no physical connection to the internet, there is no need to use a firewall to protect the system from unauthorized access.
If you cannot isolate the LAN, Avaya recommends using a firewall to protect your system. For more information, see Using a firewall.
