User manual CRESTRON RG NAT

[. . . ] Crestron NAT Network Address Translator Reference Guide This document was prepared and written by the Technical Documentation department at: Crestron Electronics, Inc. 15 Volvo Drive Rockleigh, NJ 07647 1-888-CRESTRON All brand names, product names and trademarks are the property of their respective owners. Inc. Crestron NAT 2-Series Feature Contents Network Address Translator: NAT 1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Features/Functions of Crestron NAT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] Remote Management If enabled, remote management allows the NAT configuration to be accessible from WAN (external network). This is the only command that does not require a reboot of the control system. Otherwise, click Cancel. Reboot Process Reference Guide ­ DOC. 6001 Network Address Translator: NAT · 9 2-Series Feature Portmap Page Crestron NAT The PORTMAP page, shown below, permits public access from the external network onto the internal network. The IP address of the internal network is protected by reassignment of port numbers via NAT. Port numbers are used to route the packets to the correct process, or program running on the network-aware device. For example, a process such as a telnet session receives a temporary port number when the session starts; data is sent using that port number, and the port number goes out of use when the session ends. Other port numbers, called "well-known" port numbers, are permanently assigned; for example, e-mail data under SMTP goes to port number 25. The value of each port number can range from 0 to 65535. PORTMAP Page NOTE: The three items entered on the page above corresponds to the internal network, which includes a CP2E and two Isys touchpanels as shown in the example on page 3. A process performed by a network-aware device on the internal network can be initiated from the external network. The NAT protects the anonymity of the internal network by remapping its known port assignments to ones that it publicizes. Each publicly accessible process must have an arbitrary external port number assigned to its known internal port number. For example, suppose there was a need to remotely upload a project to the Crestron touchpanel that resides on the internal LAN at IP address 192. 168. 16. 3, as shown on the PORTMAP page above. External Port The external port field requires an arbitrary number assignment for the known internal network process. The user on the external network initiates the process by entering the IP address (of the 2-Series control system with C2ENET-2 card 10 · Network Address Translator: NAT Reference Guide ­ DOC. 6001 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. 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. [. . . ] Enclose a note specifying the nature of the problem, name and phone number of contact person, RMA number, and return address. Products may be returned for credit, exchange, or service with a CRESTRON Return Merchandise Authorization (RMA) number. Authorized returns must be shipped freight prepaid to CRESTRON, Cresskill, N. J. , or its authorized subsidiaries, with RMA number clearly marked on the outside of all cartons. Shipments arriving freight collect or without an RMA number shall be subject to refusal. [. . . ]