Crestron NAT Reference Manual
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Crestron NAT Reference Manual

Crestron NAT Reference Manual

Network address translator
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Crestron NAT
Network Address Translator
Reference Guide

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Summary of Contents for Crestron NAT

  • Page 1 Crestron NAT Network Address Translator Reference Guide...
  • Page 2 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. 2002 Crestron Electronics. Inc.

  • Page 3: Table Of Contents

    Crestron NAT Contents Network Address Translator: NAT Introduction ... 1 Features/Functions of Crestron NAT ... 1 Crestron Implementation ... 2 Setup ... 5 Requirements... 5 Hookup ... 5 IP Setup ... 6 Configuration... 8 Software License Agreement... 14 Return and Warranty Policies ... 16 Merchandise Returns / Repair Service ...

  • Page 5: Network Address Translator: Nat

    Crestron IP devices and other IP enabled AV devices on an internal network (LAN) to access the Internet (WAN) using one static IP address. NOTE: The NAT throughput (from LAN B to LAN A) should not exceed 1Mbps (megabits per second). Crestron does not recommend use of high-volume streaming output devices such as IP-based codecs.

  • Page 6: Crestron Implementation

    TCP/UDP port number of the internal node are replaced with an external IP address and TCP/UDP port number in the IP and TCP/UDP header. For example, suppose there was a need to remotely upload a project to five Crestron IP enabled touchpanels residing on an internal LAN. Crestron provides a registered port (41795) that can be accessed via the Viewport with the Remote | TCP/IP | Connect command.
  • Page 7 Crestron NAT Only one IP address is required if NAT is employed. The touchpanels on the LAN are recognized only by the single external IP address and distinguished by five unique external port numbers – one for each touchpanel on the LAN. From the “Crestron Viewport TCP/IP Connect”...
  • Page 8 2-Series Feature when an internal node sends a packet to the external network, the NAT router intercepts the packet and replaces all instances of the internal source IP address with the external IP address (68.42.78.12). When an external node responds to an internal node or initiates an acceptable connection with an internal node, the NAT router intercepts the packet and replaces all instances of the external destination IP address (68.42.78.12) and assigned...

  • Page 9: Setup

    Crestron NAT Setup Requirements NAT configuration can only be performed via the web server of a 2-Series control system. Therefore, to complete the setup, the following network requirements are necessary. Hookup Prior to making any connections, verify that all hardware is powered down. Refer to the diagram after this paragraph.

  • Page 10: Ip Setup

    2-Series Feature IP Setup It is necessary to configure the control system NAT (C2ENET-2 card installed) to communicate over Ethernet using standard IP. The control system and router for the internal network are assigned IP numbers using Viewport. The instructions assume that the C2ENET-2 is installed, and the PC and control system are powered up.
  • Page 11 Pulldown from Menu Bar “Set Control System IP Address” Window Reference Guide – DOC. 6001 5. Open the Crestron Viewport and select Functions | Set Control System IP Information from the menu bar. The “Set Control System IP Address” window opens.

  • Page 12: Configuration

    NAT. Open the browser and enter the address where xxx.xxx.xxx.xxx is the IP address of the control system. NOTE: This phase of NAT allows for administrative rights that can be protected by a password. Administrative rights allow for the redirection of IP traffic as defined by port assignments.
  • Page 13 NOTE: The MAC Address is automatically provided and is determined by the loaded firmware. NOTE: Unlike the Crestron Viewport, the subnet mask is not set up automatically. LAN IP Address Specify the IP address of the control system (marked as LAN B on the Ethernet card).
  • Page 14 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;...
  • Page 15 Crestron NAT 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.
  • Page 16 NOTE: If the password is forgotten, the password can be reset via console commands. Some of the NAT specific console commands are shown in a table on the next page. For a complete listing and description of each, refer to the latest version of the 2-Series Console Commands Reference Guide (Doc.
  • Page 17 Crestron NAT NAT Related Console Commands (for 2 Series only) Reference Guide – DOC. 6001 COMMAND ADDPORTMAP Add a port map to the NAT table NATENABLE Enable/disable Network Address Translator (NAT) Enable/disable configuring the Network Address Translator (NAT) NATREMOTE from the WAN (LAN A) port...

  • Page 18: Software License Agreement

    This Agreement may only be modified by a writing signed by an authorized officer of Crestron. Updates may be licensed to You by Crestron with additional or different terms. This is the entire agreement between Crestron and You relating to the Software and it supersedes any prior representations, discussions, undertakings, communications or advertising relating to the Software.
  • Page 19 “applets” incorporated into the Software), the accompanying media and printed materials, and any copies of the Software are owned by Crestron or its suppliers. The Software is protected by copyright laws and international treaty provisions. Therefore, you must treat the Software like any other copyrighted material, subject to the provisions of this Agreement.

  • Page 20: Return And Warranty Policies

    CRESTRON shall not be liable to honor the terms of this warranty if the product has been used in any application other than that for which it was intended, or if it has been subjected to misuse, accidental damage, modification, or improper installation procedures.
  • Page 21 Crestron NAT 2-Series Feature This page intentionally left blank. Network Address Translator: NAT • 17 Reference Guide – DOC. 6001...
  • Page 22 Crestron Electronics, Inc. Reference Guide – DOC. 6001 15 Volvo Drive Rockleigh, NJ 07647 12.02 Tel: 888.CRESTRON Fax: 201.767.7576 Specifications subject to www.crestron.com change without notice.

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