NETGEAR RO318 Reference Manual
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NETGEAR RO318 Reference Manual

NETGEAR RO318 Reference Manual

Cable/dsl security router
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Download this manual See also: Installation Manual
Reference Guide for the
Model RO318 Cable/DSL
Security Router
NETGEAR, Inc.
4500 Great America Parkway
Santa Clara, CA 95054 USA
Phone 1-888-NETGEAR
SM-RO318NA-0
March 2001

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  • Page 1 Reference Guide for the Model RO318 Cable/DSL Security Router NETGEAR, Inc. 4500 Great America Parkway Santa Clara, CA 95054 USA Phone 1-888-NETGEAR SM-RO318NA-0 March 2001...
  • Page 2 In the interest of improving internal design, operational function, and/or reliability, NETGEAR reserves the right to make changes to the products described in this document without notice. NETGEAR does not assume any liability that may occur due to the use or application of the product(s) or circuit layout(s) described herein.

  • Page 3: Customer Support

    Serie auf die Erfüllung der Vorschriften hin zu überprüfen. Certificate of the Manufacturer/Importer It is hereby certified that the Model RO318 Cable/DSL Security Router has been suppressed in accordance with the conditions set out in the BMPT-AmtsblVfg 243/1991 and Vfg 46/1992. The operation of some equipment (for example, test transmitters) in accordance with the regulations may, however, be subject to certain restrictions.

  • Page 5: Table Of Contents

    Package Contents ...2-1 Local Network Hardware Requirements ...2-2 PC Requirements ...2-2 Access Device Requirement ...2-2 The Router’s Front Panel ...2-3 The Router’s Rear Panel ...2-4 Connecting the Router ...2-4 Connecting to your Local Ethernet Network ...2-5 Connecting to Your Internet Access Device ...2-5 Connecting the Power Adapter ...2-6...
  • Page 6 Account Information ...3-7 Obtaining ISP Configuration Information (Windows) ...3-8 Obtaining ISP Configuration Information (Macintosh) ...3-9 Ready for Configuration ...3-9 Chapter 4 Basic Configuration of the Router Configuring for Internet Access ...4-1 Configuring Security Features ...4-8 E-Mail ...4-8 Keyword ...4-9 Schedule ...4-10 Trusted ...
  • Page 7 Troubleshooting the Web Configuration Interface ...7-2 Troubleshooting the ISP Connection ...7-3 Troubleshooting a TCP/IP Network Using a Ping Utility ...7-5 Testing the LAN Path to Your Router ...7-5 Testing the Path from Your PC to a Remote Device ...7-6 Appendix A Technical Specifications General Specifications ...
  • Page 8 Netmask ... B-4 Subnet Addressing ... B-5 Private IP Addresses ... B-7 Single IP Address Operation Using NAT ... B-8 MAC Addresses and Address Resolution Protocol ... B-9 Domain Name Server ... B-9 IP Configuration by DHCP ... B-10 Internet Security and Firewalls ... B-10 What is a Firewall? ...
  • Page 9 Figure 2-1. RO318 Front Panel ...2-3 Figure 2-2. RO318 Rear Panel ...2-4 Figure 4-1. Login window ...4-2 Figure 4-2. Browser-based configuration main menu ...4-3 Figure 4-3. Browser-based Setup Wizard, first screen ...4-4 Figure 4-4. Browser-based Setup Wizard, second screen ...4-5 Figure 4-5.
  • Page 11 Port Table Entries (Example) ...5-7 Table 5-5. Edit IP Static Route Fields ...5-9 Table 6-1. System Status fields ...6-2 Table 6-2. Router Statistics Fields ...6-3 Table B-1. Netmask Notation Translation Table for One Octet ... B-6 Table B-2. Netmask Formats ... B-6 Table B-3.

  • Page 13: About This Guide

    Congratulations on your purchase of the NETGEAR The Model RO318 router provides a secure connection for multiple personal computers (PCs) to the Internet through an external broadband access device (such as a cable modem or DSL modem) that is normally intended for use by a single PC.
  • Page 14 Reference Guide for the Model RO318 Cable/DSL Security Router For more information about IP address translation, refer to RFC 1631, The IP Network Address Translator (NAT). About This Guide...

  • Page 15: Typographical Conventions

    Typographical Conventions This guide uses the following typographical conventions: italics Book titles and UNIX file, command, and directory names. Screen text, user-typed command-line entries. courier font Initial Caps Menu titles and window and button names. [Enter] Named keys in text are shown enclosed in square brackets. The notation [Enter] is used for the Enter key and the Return key.

  • Page 17: Introduction

    This chapter describes the features of the NETGEAR Model RO318 Cable/DSL Security Router and discusses planning considerations for installation. About the Router The Model RO318 Cable/DSL Security Router with 8-port switch connects your local area network (LAN) to the Internet through an external single-user access device such as a cable modem or DSL modem.
  • Page 18 – Incoming port forwarding and DMZ for specific services • Built in 8-port 10/100 Mbps Switch – Allows LAN connections at 10 megabits per second (Mbps) or 100 Mbps – Autosensing for Ethernet (10BASE-T) or Fast Ethernet (100BASE-Tx) transmissions – Autosensing MDI/MDIX configures each port for normal or uplink connection –...

  • Page 19: Security

    • Logging of inappropriate use You can configure the Model RO318 router to log access to Web sites and to e-mail the log to you. You can also configure the router to send an immediate alert e-mail message to you whenever a local user attempts to access a blocked Web site.

  • Page 20: Autosensing 10/100 Ethernet

    Autosensing 10/100 Ethernet With its internal, 8-port 10/100 switch, the Model RO318 router can connect to either a 10 Mbps standard Ethernet network or a 100 Mbps Fast Ethernet network. The local LAN interface is autosensing and is capable of full-duplex or half-duplex operation. In addition, the LAN interface ports automatically sense whether a connection is a normal or uplink connection (MDI/MDI-X), eliminating the need for uplink switches or crossover cables.

  • Page 21: Easy Installation And Management

    Web Management Interface. • Visual monitoring The Model RO318 router’s front panel LEDs provide an easy way to monitor its status and activity. Maintenance and Support NETGEAR offers the following features to help you maximize your use of the Model RO318 router: •...
  • Page 22 Reference Guide for the Model RO318 Cable/DSL Security Router Introduction...

  • Page 23: Setting Up The Hardware

    • Support Information Card If any of the parts are incorrect, missing, or damaged, contact your NETGEAR dealer. Keep the carton, including the original packing materials, in case you need to return the router for repair. Setting Up the Hardware...

  • Page 24: Local Network Hardware Requirements

    The Model RO318 Cable/DSL Security Router is intended for use in a network of personal computers (PCs) that are interconnected by twisted-pair Ethernet cables. PC Requirements To install and run the Model RO318 router over your network of PCs, each PC must have the following: •...

  • Page 25: Figure 2-1. Ro318 Front Panel

    The front panel of the Model RO318 router Figure 2-1. RO318 Front Panel You can use some of the LEDs to verify connections. the front panel of the Model RO318 router. These LEDs are green when lit. Table 2-1. LED Descriptions Label...

  • Page 26: Figure 2-2. Ro318 Rear Panel

    The Router’s Rear Panel The rear panel of the Model RO318 router switch. Figure 2-2. RO318 Rear Panel The rear panel contains the following features: • Power switch • 12 VDC power adapter outlet • Internet Ethernet port for connecting the router to a cable or DSL modem •...

  • Page 27: Connecting To Your Local Ethernet Network

    • Connect any LOCAL port of your Model RO318 router to any port of an Ethernet hub or switch using a standard or crossover Ethernet cable. Because the Model RO318 router is capable of automatically sensing the polarity of the Ethernet connection, you can connect to the other hub’s normal or uplink port, using a...

  • Page 28: Connecting The Power Adapter

    Verify that the PWR LED on the router is lit. Verifying Power After applying power to the router, complete the following steps to verify that power is correctly applied: When power is first applied, verify that the PWR LED is on.

  • Page 29: Preparing Your Network

    This chapter describes how to prepare your PC network to connect to the Internet through the Model RO318 Cable/DSL Security Router and how to order broadband Internet service from an Internet service provider (ISP). Preparing Your Personal Computers for IP Networking The Model RO318 Cable/DSL Security Router uses the Transmission Control Protocol/Internet Protocol (TCP/IP).

  • Page 30: Configuring Windows 95 Or Later For Ip Networking

    “Appendix B, “Networks, Routing, and Firewall The Model RO318 router is shipped preconfigured as a DHCP server. The router assigns the following TCP/IP configuration information automatically when the PCs are rebooted: •...
  • Page 31 You must have an Ethernet adapter, the TCP/IP protocol, and Client for Microsoft Networks. Note: It is not necessary to remove any other network components shown in the Network window in order to install the adapter, TCP/IP, or Client for Microsoft Networks.

  • Page 32: Configuring Tcp/Ip Properties

    Install TCP/IP on each PC, leaving the PC configured to obtain configuration settings automatically (by DHCP). Physically connect the PCs and the router using a hub or a direct connection. Restart the router and allow it to boot. Restart each PC.

  • Page 33: Configuring The Macintosh For Ip Networking

    Select your Ethernet adapter. The window is updated to show your settings, which should match the values below if you are using the default TCP/IP settings that NETGEAR recommends: • The IP address is between 192.168.0.2 and 192.168.0.31 •...

  • Page 34: Verifying Tcp/Ip Properties (Macintosh)

    TCP/IP Control Panel. From the Apple menu, select Control Panels, then TCP/IP. The panel is updated to show your settings, which should match the values below if you are using the default TCP/IP settings that NETGEAR recommends: •...

  • Page 35: Your Internet Account

    When the router’s WAN port is connected to the broadband modem, the router appears to be a single PC to the ISP. The router then allows the PCs on the local network to masquerade as the single PC to access the Internet through the broadband modem. The method used by the router to accomplish this is called Network Address Translation (NAT) or IP masquerading.

  • Page 36: Obtaining Isp Configuration Information (Windows)

    As mentioned above, you may need to collect configuration information from your PC so that you can use this information when you configure the Model RO318 router. Following this procedure is only necessary when your ISP does not dynamically supply the account information.

  • Page 37: Obtaining Isp Configuration Information (Macintosh)

    Ready for Configuration After configuring all of your PCs for TCP/IP networking and connecting them to the LOCAL network of your Model RO318 router, you are ready to access and configure the router. Proceed to the next chapter. Preparing Your Network...
  • Page 38 Reference Guide for the Model RO318 Cable/DSL Security Router 3-10 Preparing Your Network...

  • Page 39: Basic Configuration Of The Router

    This chapter describes how to perform the basic configuration of your Model RO318 Cable/DSL Security Router using the Setup Wizard, which walks you through the configuration process for your Internet connection. This chapter also describes the configuration for content filtering and reporting.

  • Page 40: Figure 4-1. Login Window

    This screen may have a different appearance in other browsers. Type in the User Name box, admin If your router password was previously changed, enter the current password. Figure 4-1 below:. in the Password box, and then click OK. 1234...

  • Page 41: Figure 4-2. Browser-Based Configuration Main Menu

    Reference Guide for the Model RO318 Cable/DSL Security Router In the opening screen, shown in Figure 4-2, select WIZARD SETUP. Figure 4-2. Browser-based configuration main menu Basic Configuration of the Router...

  • Page 42: Figure 4-3. Browser-Based Setup Wizard, First Screen

    These parameters may be necessary to access your ISP’s services such as mail or news servers. If you leave the Domain Name field blank, the router will attempt to learn the domain automatically from the ISP. If this is not successful, you will need to enter it manually.

  • Page 43: Figure 4-4. Browser-Based Setup Wizard, Second Screen

    Enter the PPTP login user name and password provided by your ISP. These fields are case sensitive. • If you wish to change the login timeout, enter a new value in seconds. Basic Configuration of the Router Figure 4-4 below:...

  • Page 44: Figure 4-5. Browser-Based Setup Wizard, Third Screen

    Service Type as Standard. Click on Next to go to the final Wizard screen shown in Figure 4-5. Browser-based Setup Wizard, third screen This screen provides setup for the following parameters: Figure 4-5 below. Basic Configuration of the Router...
  • Page 45 IP addresses. Typically your ISP transfers the IP addresses of one or two DNS servers to your router during login. If the ISP does not transfer an address, you must obtain it from the ISP and enter it manually here. If you enter an address here, you should reboot your PCs after configuring the router.

  • Page 46: Configuring Security Features

    Configuring Security Features The Model RO318 Cable/DSL Security Router provides you with Web content filtering options, plus activity reporting and instant e-mail alerts of browsing destinations and security incidents. Parents and network administrators can establish restricted browsing policies based on time-of-day, web addresses and web address keywords.

  • Page 47: Keyword

    In this case, the router overwrites the log and discards its contents. Keyword The Model RO318 router allows you to restrict access based on web addresses and web address keywords. Up to 255 entries are supported in the Keyword list. The Keyword tab is shown below:...

  • Page 48: Schedule

    If you wish to block all Internet browsing access during a scheduled period, enter the keyword “.” and set the schedule in the Schedule menu. Schedule The Model RO318 router allows you to specify when blocking will be enforced. The Schedule tab is shown below: •...

  • Page 49: Trusted

    Reference Guide for the Model RO318 Cable/DSL Security Router Trusted The Model RO318 router allows you to specify one Trusted Host, which is a PC that will be exempt from blocking and logging. Since the Trusted Host will be identified by an IP address, you should configure that PC with a fixed IP address.

  • Page 50: Logs

    Logs The Model RO318 router maintains two activity logs, one for browsing destinations and another for security incidents. The Content Filter Log is a detailed record of what websites you have accessed or attempted to access. Content Filter Log entries will only appear when keyword blocking is enabled, and no log entries will be made for the Trusted Host.
  • Page 51 Click this button to view the previous log page. Refresh Click this button to refresh the log screen. Clear Click this button to clear the log entries. Click this button to view the next log page. Next Page Basic Configuration of the Router Table 4-2 Table 4-3 4-13...
  • Page 52 Reference Guide for the Model RO318 Cable/DSL Security Router 4-14 Basic Configuration of the Router...

  • Page 53: Advanced Configuration Of The Router

    Advanced Configuration of the Router This chapter describes how to configure the advanced features of your Model RO318 Cable/DSL Security Router. These features can be found by clicking on the Advanced heading in the Main Menu of the browser interface.

  • Page 54: Dynamic Dns

    To utilize this service, you must register with the Dynamic DNS service provider, who will give you a password or key. At this time, the Model RO318 router only supports DynDNS service. For more information, visit www.dyndns.org.

  • Page 55: Figure 5-1. Lan Setup Menu

    LAN Setup Menu DHCP The Model RO318 router have the capability to act as a DHCP server, allowing them to assign IP, DNS, and default gateway addresses to attached PCs. The assigned default gateway address is the LAN address of the router. IP addresses will be assigned to the attached PCs from a pool of addresses specified in this menu.

  • Page 56: Lan Tcp/Ip

    The number of sequential addresses available for assignment to attached hosts. The maximum is 32. If you want the router to provide the Primary DNS Server address to attached hosts, enter the DNS address in this field. If this field is 0.0.0.0, the router assigns its own address as DNS Server, and performs a DNS Proxy if it can obtain a DNS address from the ISP.
  • Page 57 RIP Version Multicast Note: If you change the LAN IP address of the router while connected through the browser or Telnet, you will be disconnected. You must then open a new connection to the new IP address and log in again.

  • Page 58: Figure 5-2. Port Forwarding Menu

    Requested services are identified by port numbers in an incoming IP packet. For example, a packet that is sent to the external IP address of your router and destined for port number 80 is an HTTP (Web server) request, and port 21 is an FTP request. Examples of port numbers are shown at the top of the PORTS menu, although you are not limited to these choices.

  • Page 59: Local Web And Ftp Server Example

    Use the PORTS menu to configure the router to forward incoming protocols to IP addresses on your local network based on the port number. In addition to servers for specific protocols, you can also specify a Default (also called DMZ) Server to which all other incoming protocols are forwarded.

  • Page 60: Figure 5-3. Static Route Summary Table

    Some online games and videoconferencing applications are incompatible with NAT. The Model RO318 router is programmed to recognize some of these applications and to work properly with them, but there are other applications that may not function well. In some cases, one local PC can run the application properly if that PC’s IP address is entered as the default in...

  • Page 61: Figure 5-4. Static Route Entry And Edit Menu

    On the LAN, the gateway must be a router on the same segment as the router. Over the WAN, the gateway will be the IP address of the router at your ISP.

  • Page 62: Static Route Example

    • Your company’s network is 134.177.0.0. When you first configured your router, two implicit static routes were created. A default route was created with your ISP as the gateway, and a second static route was created to your local network for all 192.168.x.x addresses.

  • Page 63: Figure 5-5. Static Route Example

    In this case you must define a static route, telling your router that 134.177.0.0 should be accessed through the ISDN router at 192.168.100. The static route would look like Figure 5-5. Static Route Example In this example: • The Destination IP Address and IP Subnet Mask fields specify that this static route applies to all 134.177.x.x addresses.
  • Page 64 Reference Guide for the Model RO318 Cable/DSL Security Router 5-12 Advanced Configuration of the Router...

  • Page 65: Figure 6-1. System Status Screen

    Chapter 6 Maintenance This chapter describes how to use the maintenance features of your Model RO318 Cable/DSL Security Router. These features can be found by clicking on the Maintenance heading in the Main Menu of the browser interface. System Status The System Status menu provides a limited amount of status and usage information.
  • Page 66 This field displays the IP Subnet Mask being used by the Internet (WAN) port of the router. If set to None, the router is configured to use a fixed IP address on the WAN or to use PPPoE. If set to Client, the router is configured to obtain an IP address dynamically from the ISP.

  • Page 67: Figure 6-2. Router Statistics Screen

    Click on the “Show Statistics” button to display router usage statistics, as shown in below: Figure 6-2. Router Statistics screen This screen shows the following statistics:. Table 6-2. Router Statistics Fields Field Description Port The statistics for the WAN (Internet) and LAN (local) ports. For each port, the screen...

  • Page 68: Figure 6-3. Dhcp Table

    Software Upgrade The routing software of the Model RO318 router is stored in FLASH memory, and can be upgraded as new software is released by NETGEAR. Upgrade files can be downloaded from Netgear's website. If the upgrade file is compressed (.ZIP file), you must first extract the binary (.BIN) file before sending it to the router.

  • Page 69: Configuration File Management

    Note: When uploading software to the Model RO318 router, it is important not to interrupt the Web browser by closing the window, clicking a link, or loading a new page. If the browser is interrupted, it may corrupt the software. When the upload is complete, your router will automatically restart.

  • Page 70: Loading Software And Configuration Files Using Ftp

    To back up or restore the configuration file over the LAN using an FTP client program, follow these steps If you are sending a configuration file to the router, first rename it to rom-0, with no extension. Use your FTP client to establish an FTP connection to the router at the LAN address, 192.168.0.1.

  • Page 71: Using Ftp From The Wan

    • Upload the default config file romfile0.318, which can be found on the Model RO318 Resource CD. This config file is also available on the NETGEAR Web site. The config file can be uploaded through the Web Manager (see 6-5), or by ftp (see “Backing Up and Restoring the Configuration Using FTP“...
  • Page 72 Continue to hold the Default Reset button. The TEST LED will begin to blink, then will flicker very quickly after about 10 or 15 seconds. This indicates that the defaults have been restored and the router is now rebooting. Release the Default Reset button and wait for the router to reboot. Maintenance...

  • Page 73: Troubleshooting

    • Check that you are using the 12 V DC power adapter supplied by NETGEAR for this product. If the error persists, you have a hardware problem and should contact technical support.

  • Page 74: Test Led Never Blinks Or Led Stays On

    Test LED Never Blinks or LED Stays On When the router is turned on, the Test LED blinks for about 30 seconds at a rate of approximately 0.5 Hz and then turns off. If the Test LED does not blink, or if it stops blinking and stays on, there is a fault within the router.

  • Page 75: Troubleshooting The Isp Connection

    • Make sure your PC’s IP address is on the same subnet as the router. If you are using the recommended addressing scheme, your PC’s address should be in the range of 192.168.0.2 to 192.168.0.32. Refer to “Verifying TCP/IP Properties (Windows)“ on page 3-4 TCP/IP Properties (Macintosh)“...
  • Page 76 If 0.0.0.0 is shown, your router has not obtained an IP address from your ISP. If your router is unable to obtain an IP address from the ISP, you may need to force your cable or DSL modem to recognize your new router by performing the following procedure: Turn off power to the cable or DSL modem.

  • Page 77: Troubleshooting A Tcp/Ip Network Using A Ping Utility

    Testing the LAN Path to Your Router You can ping the router from your PC to verify that the LAN path to your router is set up correctly. To ping the router from a PC running Windows 95 or later: From the Windows toolbar, click on the Start button and select Run.

  • Page 78: Testing The Path From Your Pc To A Remote Device

    — Check that your cable or DSL modem is connected and functioning. — If your ISP assigned a host name to your PC, enter that host name as the router name in the Wizard Setup.

  • Page 79: Technical Specifications

    This appendix provides technical specifications for the Model RO318 Cable/DSL Security Router. General Specifications Network Protocol and Standards Compatibility Data and Routing Protocols: Power Adapter North America: United Kingdom, Australia: Europe: Japan: All regions (output): Technical Specifications Technical Specifications TCP/IP, RIP-1, RIP-2, DHCP...
  • Page 80 Physical Specifications Dimensions: Weight: Environmental Specifications Operating temperature: Operating humidity: Electromagnetic Emissions Meets requirements of: Interface Specifications LAN: WAN: 253 by 181 by 35 mm 9.95 by 7.1 by 1.4 in. 1.1 kg 2.5 lb. 0 to 40 C 90% maximum relative humidity, noncondensing FCC Part 15 Class B VCCI Class B EN 55 022 (CISPR 22), Class B...

  • Page 81: Networks, Routing, And Firewall Basics

    A router is a device that forwards traffic between networks based on network layer information in the data and on routing tables maintained by the router. In these routing tables, a router builds up a logical picture of the overall network by gathering and exchanging information with other routers in the network.

  • Page 82: Routing Information Protocol

    Information Protocol (RIP). Using RIP, routers periodically update one another and check for changes to add to the routing table. The Model RO318 router supports both the older RIP-1 and the newer RIP-2 protocols. Among other improvements, RIP-2 supports subnet and multicast protocols. RIP is not required for most home applications.

  • Page 83: Figure B-1. Three Main Address Classes

    There are five standard classes of IP addresses. These address classes have different ways of determining the network and host sections of the address, allowing for different numbers of hosts on a network. Each address type begins with a unique bit pattern, which is used by the TCP/IP software to identify the address class.

  • Page 84: Netmask

    • Class D Class D addresses are used for multicasts (messages sent to many hosts). Class D addresses are in this range: 224.0.0.0 to 239.255.255.255. • Class E Class E addresses are for experimental use. This addressing structure allows IP addresses to uniquely identify each physical network and each node on each physical network.

  • Page 85: Figure B-2. Example Of Subnetting A Class B Address

    Reference Guide for the Model RO318 Cable/DSL Security Router Subnet Addressing By looking at the addressing structures, you can see that even with a Class C address, there are a large number of hosts per network. Such a structure is an inefficient use of addresses if each end of a routed link requires a different network number.
  • Page 86 Note: The number 192.68.135.127 is not assigned because it is the broadcast address of the first subnet. The number 192.68.135.128 is not assigned because it is the network address of the second subnet. The following table lists the additional subnet mask bits in dotted-decimal notation. To use the table, write down the original class netmask and replace the 0 value octets with the dotted-decimal value of the additional subnet bits.

  • Page 87: Private Ip Addresses

    Netmask Formats 255.255.255.252 255.255.255.254 255.255.255.255 NETGEAR strongly recommends that you configure all hosts on a LAN segment to use the same netmask for the following reasons: • So that hosts recognize local IP broadcast packets When a device broadcasts to its segment neighbors, it uses a destination address of the local network address with all ones for the host address.

  • Page 88: Single Ip Address Operation Using Nat

    The Model RO318 router employs an address-sharing method called Network Address Translation (NAT). This method allows several networked PCs to share an Internet account using only a single IP address, which may be statically or dynamically assigned by your ISP.

  • Page 89: Mac Addresses And Address Resolution Protocol

    Many of the resources on the Internet can be addressed by simple descriptive names such as www.NETGEAR.com. This addressing is very helpful at the application level, but the descriptive name must be translated to an IP address in order for a user to actually contact the resource. Just as...

  • Page 90: Ip Configuration By Dhcp

    IP addresses, along with other information (such as gateway and DNS addresses) that it may assign to the other devices on the network. The Model RO318 router has the capacity to act as a DHCP server.

  • Page 91: Stateful Packet Inspection

    A more sophisticated attack may attempt to exploit some weakness in the operating system used by your router or gateway. Some operating systems can be disrupted by simply sending a packet with incorrect length information.

  • Page 92: Ethernet Cabling

    Ethernet Cabling Although Ethernet networks originally used thick or thin coaxial cable, most installations currently use unshielded twisted pair (UTP) cabling. The UTP cable contains eight conductors, arranged in four twisted pairs, and terminated with an RJ45 type connector. A normal "straight-through" UTP Ethernet cable follows the EIA568B standard wiring and pinout as described in Table B-3.

  • Page 93: Cable Quality

    • Auto MDI/MDI-X switching Some Ethernet switch products, such as the Model RO318 router, are able to sense the polarity of a connection and automatically adapt to the proper mating polarity. Cable Quality...
  • Page 94 Reference Guide for the Model RO318 Cable/DSL Security Router B-14 Networks, Routing, and Firewall Basics...

  • Page 95: Glossary

    Domain names are of the form of a registered entity name plus one of a number of predefined top level suffixes such as .com, .edu, .uk, etc. For example, in the address mail.NETGEAR.com, mail is a server name and NETGEAR.com is the domain.
  • Page 96 See Internet Packet Exchange. Internet service provider. Internet Packet Novell’s internetworking protocol. Exchange Internet Protocol The main internetworking protocol used in the Internet. Used in conjunction with the Transfer Control Protocol (TCP) to form TCP/IP. See local area network. local area network LAN.
  • Page 97 Internet. RFCs can be found at www.ietf.org. See Routing Information Protocol. router A device that forwards data between networks. An IP router forwards data based on IP source and destination addresses. Routing Information A protocol in which routers periodically exchange information with one...
  • Page 98 Reference Guide for the Model FR314 Cable/DSL Firewall Router Glossary...
  • Page 99 NAT. See Network Address Translation Encapsulation 4-5 EPROM, for firmware upgrade 1-2, 1-5 erase configuration 6-5 Ethernet cable B-12 factory settings, restoring 6-5 features 1-1 front panel 2-3 FTP, updating the router software 6-6 gateway address 3-8, 3-9 host name 4-4 Index...
  • Page 100 DHCP Client ID 3-6 Obtaining ISP Configuration Information 3-9 MDI/MDI-X wiring B-12 Metric, Static Route menu 5-10 Multicast 5-5 NAT. See Network Address Translation NETGEAR contacting xiii netmask translation table B-6 Network Address Translation 1-4, B-8 package contents 2-1 password...
  • Page 101 1597 xiii, B-7 1631 xiv, B-8 finding B-7 RoadRunner 3-7, 4-6 rom-0 file 6-5 romfile0.318 6-7 router concepts B-1 Routing Information Protocol 1-4, B-2 security 1-1, 1-3 Security Event Log 4-12 Service Name 4-5 Setup Wizard 4-1 spoof MAC address 7-4...

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