KMD-5205 and KMD-5270 Installation and Operation
Revision J
Configuration and programming
Firewalls and network communications
33
Firewalls and
network
communications
Firewalls are commonly installed on networks to prevent unauthorized traffic or
electronic probes from entering the network. If the controller must communicate
with a network where a firewall is in place, the following actions must be taken.
Tier 1 controllers communicate through one of three Ethernet Ports:
These ports must be open for communications to pass through a firewall.
If the controller resides behind a Network Address Translation (NAT) router, the
IP address for the controller must be preceded by the lowercase letter ‘r’ in the
WinControl system menu. (For example, r128.1.1.5.)
Adding this prefix letter will cause WinControl to disregard the IP table and
download from the panel itself.
Note
If you use this method you will only be able to connect
one
Tier 1 controller
through the router.
System time keeping
The controllers feature real-time clocks. Once the clock is set with WinControl XL,
the controller maintains accurate time even during power loss. A KMC digital
network uses the lowest addressed Tier 1 controller with a real-time clock as the
system time keeper.
Tabel 4-6 Firewall ports
Connection
UDP Port
WinControl to Tier 1 controller
21068
Tier 1 controller to Tier 1 controller
21069
Tier 1 controller to Tier 1 controller
21070
