Crestron Electronics CP4N - Page 194

188 • 4-Series™ Control Systems Product Manual — Doc. 8559B
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MAC_Address - The device MACaddress
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IP_Address - The device IPaddress
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Description - Adescription of the device
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REM- Removes a previously created IPaddress from the device using the following
syntax:MAC_Address
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MAC_Address - The device MACaddress
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CLEAR_ALL - Clears all previous created IPaddresses
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No parameter - Displays all current reserved DHCPleases in table format
Example: RESERVEDLeases ADD 81:51:CA:48:73:24 10.0.0.9 TestDevice
The MAC address should be in the format XX:XX:XX:XX:XX:XX on the command line.
Control Subnet Firewall Configuration
In isolation mode, the firewall is preconfigured to limit access to the Control Subnet and cannot
be further configured. The firewall configuration in isolation Mode is as follows:
Control System Firewall Rules - Isolation Mode
Direction Port(s) Rule Description
Inbound from
LAN
22 To CPU SSH
Inbound from
LAN
80, 443 To CPU Web server (if turned on)
Inbound from
LAN
41794, 41796 To CPU Crestron communication protocols
Inbound from
LAN
Listen ports
used by
program
To CPU Programmatic listeners
Inbound from
LAN
49200 To CPU Crestron HTML5 User Interface
Inbound from
LAN
64000–64299 Blocked In isolation mode, Crestron management
tools cannot connect to any devices on the
Control Subnet
Control Subnet
Outbound to
LAN
Any port All other
devices:Blocked
No outbound traffic is allowed
Inbound from
LAN
User defined Blocked In isolation mode, no port forwarding can be
managed by the user