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System Administrator’s Guide
Document K14392V1 Rev A 49
07/07
Firewall: Technical Note
Multi sessions (live, retrieval and alarm) are sent to port 10 000, by default.
Table 3–7 Default Transmission Control Protocol (TCP) Ports
Port* Name Use Needed at …
10 000
†
Base live, retrieval and alarm sessions Multi-Media unit
operator station
10 001 Maintenance Maintenance Session for configuration,
security, and sending/receiving system files
Multi-Media unit
administrator’s station
21 FTP file transfer during upgrades and to obtain a
unit’s log
Multi-Media unit
administrator’s station
10 003 Alarm alarm server for callbacks alarm station
Multi-Media unit
* These port settings are listed in the Add Connection/Update Connection dialog boxes.
† The base port can be changed by using Admin software. For an example, see Network Address
Translation.
The TCP ports listed in table 3–7 should be left open in your organization’s firewall.
Cascading Alarm Stations
Flexibility in security
Prioritizing alarm stations is optional and applies only if many Multi alarm stations were created by
your organization's Multi SA.
Purpose: cascading and priority
Your Multi system can have one or many alarm stations. With many, cascading is automatic and
customizable. You can specify which alarm stations your Multi-Media units tries to reach first.
Cascade sequence
To insure against alarm station unavailability, you can:
• Assign more than one alarm station to a unit
• Set the order in which alarm stations are called.
Preparations
Before you prioritize alarm stations:
• Create Alarm stations using the Alarm Station tab. See
Adding an Alarm Station: Name and
Reports, p.
203.
• Set events to trigger alarms. An alarm station is ineffective until events are set to trigger alarms.
See
Events Defined, on p. 187.