The firewall.pl script enables you to specify which network interfaces are used for the system management and client traffic types.
If you run the command without arguments, the out-of-band management settings are reset to the default configuration, where all traffic types use all network interfaces. This can be helpful if the network interface you selected for system management traffic is not reachable.
The script is located in the /opt/Avaya/CallSignallingAgent/<version>/CAS/<version>/os/security/ directory.