Crestron
NAT
2-Series
Feature
installed), colon (:), and external port (number for the item) from the Crestron
Viewport. For example, to upload to the touchpanel in Conference Room 1, select
Remote | TCP/IP | Connect
and enter
68.42.78.12:1003
in the window as shown
below. Click on the
Connect
button to access the touchpanel on the internal network.
Crestron Viewport TCP/IP Connect Window
Protocol
Options for protocol are:
TCP
,
UDP
, or
Both
. Selection depends on the type of
application for the given process. For example, choose
TCP
for console commands
and select
UDP
for CIP communication (i.e., processor to panel, etc.).
IP Address
Depending on the subnet of the internal network, one or two groups of decimal digits
separated by periods may be required to be entered in the
IP Address
column. Enter
the IP address of the Network-aware device residing on the internal network.
Internal Port
Enter the port number for the given process performed on a network-aware internal
device that needs to be exposed to the external network. Refer to the table of well-
known port numbers, below.
NOTE:
After the appropriate portmap fields are complete, click
Apply
. Otherwise,
click
Cancel
.
Well-Known Port Numbers*
PORT NUMBER
DESCRIPTION
7
Echo
20
File Transfer protocol (FTP)
21
File Transfer protocol (FTP)
23
Telnet
25
E-Mail (SMTP)
53
Domain Name Service (DNS)
79
Finger
80
World Wide Web (HTTP - Crestron default)
119
Network News Transfer Protocol (NTTP)
123
Network Time Protocol
8080
Alternate Web Port (de facto standard - not official)
41794
Crestron registered port for CIP (i.e., Crestron to
Crestron)
41795
Crestron registered port for TCP
(I.e., console commands and Viewport)
*
Except for the last two items in the table, information source gathered from the Internet Assigned
Numbers (www.iana.org/assignments/port-numbers).
NOTE:
When remapping a service (like HTTP port 80) to a different port number,
Crestron suggests that values greater than 1024 are used to prevent conflicts with
established services.
Reference Guide – DOC. 6001
Network Address Translator: NAT
•
11
Summary of Contents for NAT
Page 1: ...Crestron NAT Network Address Translator Reference Guide ...
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