Netgear RO318 RO318 Reference Manual

Netgear RO318 Manual

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  • Netgear RO318 | RO318 Reference Manual - 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
  • Netgear RO318 | RO318 Reference Manual - Page 2
    NETGEAR reserves the right to make changes to the products described in this document without notice. NETGEAR and used in accordance with the instructions, may cause harmful interference to radio is to certify that the Model RO318 Cable/DSL Security Router is shielded against the generation of radio
  • Netgear RO318 | RO318 Reference Manual - Page 3
    a radio or TV receiver, it may become the cause of radio interference. Read instructions for correct handling. Customer Support Refer to the Support Information Card that shipped with your Model RO318 Cable/DSL Security Router. World Wide Web NETGEAR maintains a World Wide Web home page that you can
  • Netgear RO318 | RO318 Reference Manual - Page 4
    iv
  • Netgear RO318 | RO318 Reference Manual - Page 5
    Contents About This Guide Technical Support ...xiii Related Publications ...xiii Typographical Conventions xv Special Message Formats xv Chapter 1 Introduction About the Router ...1-1 Key Features ...1-1 Security ...1-3 Content Filtering ...1-3 Autosensing 10/100 Ethernet 1-4 TCP/IP ...1-4 Easy
  • Netgear RO318 | RO318 Reference Manual - Page 6
    for Internet Access 4-1 Configuring Security Features 4-8 E-Mail ...4-8 Keyword ...4-9 Schedule ...4-10 Trusted ...4-11 Logs ...4-12 Chapter 5 Advanced Configuration of the Router System Settings ...5-1 System Tab ...5-1 Dynamic DNS ...5-2 Password ...5-2 LAN Setup ...5-3 DHCP ...5-3 LAN TCP/IP
  • Netgear RO318 | RO318 Reference Manual - Page 7
    Files Using FTP 6-6 Updating Router Software Using FTP 6-6 Backing Up and Restoring the Configuration Using FTP 6-6 Using FTP from the WAN 6-7 Restoring the Default Configuration and Password 6-7 Using the Default Reset button 6-7 Chapter 7 Troubleshooting Basic Functioning ...7-1 PWR
  • Netgear RO318 | RO318 Reference Manual - Page 8
    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 B-10 Stateful Packet Inspection B-11 Denial of Service Attack B-11 Ethernet Cabling ...B-12
  • Netgear RO318 | RO318 Reference Manual - Page 9
    Setup Menu 5-3 Port Forwarding Menu 5-6 Static Route Summary Table 5-8 Static Route Entry and Edit Menu 5-9 Static Route Example 5-11 System Status screen 6-1 Router Statistics screen 6-3 DHCP Table 6-4 Three Main Address Classes B-3 Example of Subnetting a Class B Address B-5 Single IP
  • Netgear RO318 | RO318 Reference Manual - Page 10
    x
  • Netgear RO318 | RO318 Reference Manual - Page 11
    descriptions 4-12 Security Event Log entry descriptions 4-13 Log display buttons 4-13 Dynamic DNS configuration fields 5-2 DHCP Setup Fields 5-4 LAN TCP/IP Setup Fields 5-4 Port Table Entries (Example 5-7 Edit IP Static Route Fields 5-9 System Status fields 6-2 Router Statistics Fields
  • Netgear RO318 | RO318 Reference Manual - Page 12
    xii
  • Netgear RO318 | RO318 Reference Manual - Page 13
    About This Guide Congratulations on your purchase of the NETGEAR™ Model RO318 Cable/DSL Security Router. 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
  • Netgear RO318 | RO318 Reference Manual - 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). xiv About This Guide
  • Netgear RO318 | RO318 Reference Manual - Page 15
    Reference Guide for the Model RO318 Cable/DSL Security Router Typographical Conventions This guide uses the following typographical conventions . ALL CAPS DOS file and directory names. Special Message Formats This guide uses the following formats to highlight special messages: Note: This format
  • Netgear RO318 | RO318 Reference Manual - Page 16
  • Netgear RO318 | RO318 Reference Manual - Page 17
    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
  • Netgear RO318 | RO318 Reference Manual - Page 18
    Reference Guide for the Model RO318 Cable/DSL Security Router - 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
  • Netgear RO318 | RO318 Reference Manual - Page 19
    Reference Guide for the Model RO318 Cable/DSL Security Router Security The Model RO318 router is equipped with several features designed to maintain security, as described in this section. • Stateful Packet Inspection for True Firewall Protection Unlike simple Internet sharing routers, a firewall
  • Netgear RO318 | RO318 Reference Manual - Page 20
    switches or crossover cables. TCP/IP The Model RO318 router supports the Transmission Control Protocol/Internet Protocol (TCP/IP) and Routing Information Protocol (RIP). For further information about TCP/IP, refer to Appendix B, "Networks, Routing, and Firewall Basics." • IP Address Masquerading by
  • Netgear RO318 | RO318 Reference Manual - Page 21
    Reference Guide for the Model RO318 Cable/DSL Security Router Easy Installation and Management You can install, configure, and operate the Model RO318 Cable/DSL Security Router within minutes after connecting it to the network. The following features simplify installation and management tasks: •
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    Reference Guide for the Model RO318 Cable/DSL Security Router 1-6 Introduction
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    wiring (white) • Model RO318 Resource CD, including: - This guide - Application Notes • RO318 Cable/DSL Security Router Installation Guide • Registration and Warranty Card • Support Information Card If any of the parts are incorrect, missing, or damaged, contact your NETGEAR dealer. Keep the carton
  • Netgear RO318 | RO318 Reference Manual - Page 24
    Reference Guide for the Model RO318 Cable/DSL Security Router 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
  • Netgear RO318 | RO318 Reference Manual - Page 25
    Reference Guide for the Model RO318 Cable/DSL Security Router The Router's Front Panel The front panel of the Model RO318 router (Figure 2-1) contains status LEDs. Figure 2-1. RO318 Front Panel You can use some of the LEDs to verify connections. Table 2-1 lists and describes each LED on the front
  • Netgear RO318 | RO318 Reference Manual - Page 26
    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 • Eight Local Ethernet ports for connecting the router to the local PCs • Factory Default Reset pushbutton
  • Netgear RO318 | RO318 Reference Manual - Page 27
    Reference Guide for the Model RO318 Cable/DSL Security Router Connecting to your Local Ethernet Network Your local network will attach to the router port or ports marked LOCAL. The LOCAL ports are capable of operation at either 10 Mbps (10BASE-T) or 100 Mbps (100BASE-Tx), depending on the
  • Netgear RO318 | RO318 Reference Manual - Page 28
    Reference Guide for the Model RO318 Cable/DSL Security Router Connecting the Power Adapter To connect the router to the power adapter: 1. Plug the connector of the power adapter into the 12 VDC adapter outlet on the rear panel of the router that are connected. c. The INTERNET LNK LED is lit. If
  • Netgear RO318 | RO318 Reference Manual - Page 29
    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). In order to access
  • Netgear RO318 | RO318 Reference Manual - Page 30
    Reference Guide for the Model RO318 Cable/DSL Security Router Follow the instructions provided with your operating system or networking software to install TCP/IP on your computer. Although TCP/IP is built into the Windows operating system (starting with Windows 95), you need to enable and configure
  • Netgear RO318 | RO318 Reference Manual - Page 31
    Reference Guide for the Model RO318 Cable/DSL Security Router 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
  • Netgear RO318 | RO318 Reference Manual - Page 32
    Reference Guide for the Model RO318 Cable/DSL Security Router d. Select TCP/IP, and then click OK. If you need Client for Microsoft Networks: a. Click the Add button. b. Select Client, and then click Add. c. Select Microsoft. d. Select Client
  • Netgear RO318 | RO318 Reference Manual - Page 33
    Reference Guide for the Model RO318 Cable/DSL Security Router To check your PC's TCP/IP configuration: 1. On the Windows taskbar, click the Start button, and then click Run. The Run window opens. 2. Type winipcfg, and then click OK. The IP Configuration window opens, which lists (among other things
  • Netgear RO318 | RO318 Reference Manual - Page 34
    Reference Guide for the Model RO318 Cable/DSL Security Router 2. From the "Connect via" box, select your Macintosh's Ethernet interface. 3. From the "Configure" box, select Using DHCP Server. You can leave the DHCP Client ID box empty. 4. Close the TCP/IP Control Panel. 5. Repeat this for each
  • Netgear RO318 | RO318 Reference Manual - Page 35
    Reference Guide for the Model RO318 Cable/DSL Security Router Your Internet Account For access to the Internet, you need to contract with an Internet service provider (ISP) for a single-user Internet access account using an external broadband access device such as a cable modem or DSL modem. This
  • Netgear RO318 | RO318 Reference Manual - Page 36
    Reference Guide for the Model RO318 Cable/DSL Security Router • An IP address and subnet mask • A gateway IP address, which is the address of the ISP's router • One or more domain name server (DNS) IP addresses • Host name and domain suffix For example, your account's full server names may look like
  • Netgear RO318 | RO318 Reference Manual - Page 37
    Reference Guide for the Model RO318 Cable/DSL Security Router 6. Select the DNS Configuration tab. If any DNS server addresses are shown, write down the addresses. If any information appears in the Host or Domain information box, write it down. Click Disable DNS. 7. Click OK to save your changes and
  • Netgear RO318 | RO318 Reference Manual - Page 38
    Reference Guide for the Model RO318 Cable/DSL Security Router 3-10 Preparing Your Network
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    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. Configuring for Internet Access In order to use
  • Netgear RO318 | RO318 Reference Manual - Page 40
    Reference Guide for the Model RO318 Cable/DSL Security Router A login window opens as shown in Figure 4-1 below:. Figure 4-1. Login window This screen may have a different appearance in other browsers. 5. Type admin in the User Name box, 1234 in the Password box, and then click OK. If your router
  • Netgear RO318 | RO318 Reference Manual - Page 41
    Reference Guide for the Model RO318 Cable/DSL Security Router 6. 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 4-3
  • Netgear RO318 | RO318 Reference Manual - Page 42
    Reference Guide for the Model RO318 Cable/DSL Security Router 7. In the first Wizard screen, enter your account's Host Name and Domain Name, as shown in Figure 4-3 below: Figure 4-3. Browser-based Setup Wizard, first screen These parameters may be necessary to access your ISP's services such as mail
  • Netgear RO318 | RO318 Reference Manual - Page 43
    Reference Guide for the Model RO318 Cable/DSL Security Router 8. Click on Next to go to the ISP Parameters screen, shown in Figure 4-4 below: Figure 4-4. Browser-based Setup Wizard, second screen This screen determines whether a login program will be run. a. If your service provider does not
  • Netgear RO318 | RO318 Reference Manual - Page 44
    Reference Guide for the Model RO318 Cable/DSL Security Router • If provided by your ISP, enter your PPTP IP Address and the Server IP Address of their PPTP Server. • If provided by your ISP, enter the Connection ID/Name for your service. Otherwise leave this field blank. Proceed to Step 9. d. If
  • Netgear RO318 | RO318 Reference Manual - Page 45
    Reference Guide for the Model RO318 Cable/DSL Security Router a. WAN IP Address Assignment: Unless your ISP has assigned a fixed permanent IP address for your use, select "Get automatically from ISP". Otherwise, enter your IP Address, Subnet Mask, and the IP Address of your ISP's gateway router. b.
  • Netgear RO318 | RO318 Reference Manual - Page 46
    Reference Guide for the Model RO318 Cable/DSL Security Router 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
  • Netgear RO318 | RO318 Reference Manual - Page 47
    Reference Guide for the Model RO318 Cable/DSL Security Router • Send immediate alert when attack is detected Check this box if you would like immediate notification of hacking attempts. • Send immediate alert upon attempted access to a blocked site Check this box if you would like immediate
  • Netgear RO318 | RO318 Reference Manual - Page 48
    Reference Guide for the Model RO318 Cable/DSL Security Router To enable keyword blocking, check Enable Keyword Blocking, then click Apply. Be sure that a time period for blocking is specified on the Schedule setup screen. To add a keyword or domain, type it in the Keyword box, click Add Keyword,
  • Netgear RO318 | RO318 Reference Manual - Page 49
    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
  • Netgear RO318 | RO318 Reference Manual - Page 50
    Reference Guide for the Model RO318 Cable/DSL Security Router 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
  • Netgear RO318 | RO318 Reference Manual - Page 51
    Reference Guide for the Model RO318 Cable/DSL Security Router Security Event Log entries are described in Table 4-2 Table 4-2. Security Event . For each event, the following information is provided: • Source IP address (From:) • Destination IP address (To:) • Protocol (for example, TCP or UDP) •
  • Netgear RO318 | RO318 Reference Manual - Page 52
    Reference Guide for the Model RO318 Cable/DSL Security Router 4-14 Basic Configuration of the Router
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    to configure the advanced features of your Model RO318 Cable/DSL Security Router. These features can be found by clicking on the System (Host) Name and Domain Name. These parameters may be necessary to access your ISP's services such as mail or news servers. • System Name This is the host or
  • Netgear RO318 | RO318 Reference Manual - Page 54
    Reference Guide for the Model RO318 Cable/DSL Security Router Dynamic DNS Your router supports Dynamic Domain Name Service (DDNS). In a Dynamic DNS service, an IP registry server provides a public central database where dynamically-assigned IP addresses can be stored and retrieved by hostname
  • Netgear RO318 | RO318 Reference Manual - Page 55
    LAN Setup Reference Guide for the Model RO318 Cable/DSL Security Router The second feature category under the Advanced heading is LAN Setup. This menu allows configuration of LAN IP services such as DHCP and RIP. From the Main Menu of the browser interface, under Advanced, click on LAN to view the
  • Netgear RO318 | RO318 Reference Manual - Page 56
    Reference Guide for the Model RO318 Cable/DSL Security Router Table 5-2 lists and describes the fields to use for setting up DHCP parameters.. Table 5-2. DHCP Setup Fields Field DHCP Server: Pool Starting Address Count Primary DNS Server Secondary DNS Server Description If this box is checked,
  • Netgear RO318 | RO318 Reference Manual - Page 57
    Reference Guide for the Model RO318 Cable/DSL Security Router Table 5-3. LAN TCP/IP Setup Fields (continued) Field RIP Direction RIP Version Multicast Description This parameter determines how the router handles RIP (Routing Information Protocol). RIP allows the router to exchange routing
  • Netgear RO318 | RO318 Reference Manual - Page 58
    Reference Guide for the Model RO318 Cable/DSL Security Router Configuring for Port Forwarding to Local Servers Although the router causes your entire local network to appear as a single machine to the Internet, you can make local servers for different services (for example, FTP or HTTP) visible and
  • Netgear RO318 | RO318 Reference Manual - Page 59
    Reference Guide for the Model RO318 Cable/DSL Security Router 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)
  • Netgear RO318 | RO318 Reference Manual - Page 60
    Reference Guide for the Model RO318 Cable/DSL Security Router Local Game Host or Videoconference Example 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
  • Netgear RO318 | RO318 Reference Manual - Page 61
    Reference Guide for the Model RO318 Cable/DSL Security Router To add or edit a Static Route, select a number and click the Edit button to open the Edit Menu, shown in Figure 5-4 Figure 5-4. Static Route Entry and Edit Menu Table 5-5 lists and describes the fields for the IP IP network address of
  • Netgear RO318 | RO318 Reference Manual - Page 62
    Reference Guide for the Model RO318 Cable/DSL Security Router Table 5-5. Field Metric Private Edit IP Static Route Fields (continued) Description Enter the cost in 'hops' of transmission for routing purposes. IP routing uses hop counts as the measurement of cost, with a minimum of 1 for directly
  • Netgear RO318 | RO318 Reference Manual - Page 63
    Reference Guide for the Model RO318 Cable/DSL Security Router 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. Figure 5-5. Static Route Example In this example: •
  • Netgear RO318 | RO318 Reference Manual - Page 64
    Reference Guide for the Model RO318 Cable/DSL Security Router 5-12 Advanced Configuration of the Router
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    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
  • Netgear RO318 | RO318 Reference Manual - Page 66
    Reference Guide for the Model RO318 Cable/DSL Security Router The System Status screen shows the parameters listed in Table 6-1 Table 6-1. System Status fields Field System Name Router Firmware Version WAN Port IP Address IP Subnet Mask DHCP LAN Port IP Address IP Subnet Mask DHCP Description
  • Netgear RO318 | RO318 Reference Manual - Page 67
    Reference Guide for the Model RO318 Cable/DSL Security Router Click on the "Show Statistics" button to display router usage statistics, as shown in Figure 6-2 below: Figure 6-2. Router Statistics screen This screen shows the following statistics:. Table 6-2. Router Statistics Fields Field Port
  • Netgear RO318 | RO318 Reference Manual - Page 68
    Reference Guide for the Model RO318 Cable/DSL Security Router DHCP Table The DHCP Table shows all IP address assignments that have been made by the router's DHCP server. From the Main Menu of the browser interface, click on Maintenance, then select DHCP Table to view the table, shown in Figure 6-3
  • Netgear RO318 | RO318 Reference Manual - Page 69
    Reference Guide for the Model RO318 Cable/DSL Security Router 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
  • Netgear RO318 | RO318 Reference Manual - Page 70
    Reference Guide for the Model RO318 Cable/DSL Security Router To restore the factory default configuration settings without knowing the login password or IP address, you must use the Default Reset button on the rear panel of the router. See "Using the Default Reset button" on page 6-7. Loading
  • Netgear RO318 | RO318 Reference Manual - Page 71
    Reference Guide for the Model RO318 Cable/DSL Security Router 3. Select binary (not ascii) transfer mode. 4. Use your FTP program to get (back up) or put (restore) the file named rom-0 in the router. After you have sent a configuration file to the router, the router programs the new configuration
  • Netgear RO318 | RO318 Reference Manual - Page 72
    Reference Guide for the Model RO318 Cable/DSL Security Router 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. 4. Release the
  • Netgear RO318 | RO318 Reference Manual - Page 73
    This chapter gives information about troubleshooting your Model RO318 Cable/DSL Security Router. After each problem description, instructions are provided to help you diagnose and solve the problem. Basic Functioning After you turn on power to the router, the following sequence of events
  • Netgear RO318 | RO318 Reference Manual - Page 74
    router recovers. • Clear the router's configuration to factory defaults. This will set the router's IP address to 192.168.0.1. This procedure is explained in "Using the Default Reset button" on page 6-7. If the error persists, you might have a hardware problem and should contact technical support
  • Netgear RO318 | RO318 Reference Manual - Page 75
    Reference Guide for the Model RO318 Cable/DSL Security Router • 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 (
  • Netgear RO318 | RO318 Reference Manual - Page 76
    Reference Guide for the Model RO318 Cable/DSL Security Router 2. Access the Main Menu of the router's configuration at http://192.168.0.1 3. Under the Advanced heading, click on Maintenance 4. Check that an IP address is shown for the WAN Port If 0.0.0.0 is shown, your router has not obtained an IP
  • Netgear RO318 | RO318 Reference Manual - Page 77
    Reference Guide for the Model RO318 Cable/DSL Security Router A DNS server is a host on the Internet that translates Internet names (such as www addresses) to numeric IP addresses. Typically your ISP will provide the addresses of one or two DNS servers for your use. If you entered a DNS address
  • Netgear RO318 | RO318 Reference Manual - Page 78
    Reference Guide for the Model RO318 Cable/DSL Security Router - Make sure the LAN LNK/ACT LED is on. If the LNK/ACT LED is off, follow the instructions in "LNK/ACT LEDs Not On" on page 7-2. - Check that the corresponding Link LEDs are on for your network interface card and for the hub
  • Netgear RO318 | RO318 Reference Manual - Page 79
    Appendix A 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: TCP/IP, RIP-1, RIP-2, DHCP PPP over Ethernet (PPPoE) Power Adapter
  • Netgear RO318 | RO318 Reference Manual - Page 80
    Reference Guide for the Model RO318 Cable/DSL Security Router 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
  • Netgear RO318 | RO318 Reference Manual - Page 81
    network (LAN). However, providing high bandwidth between a local network and the Internet can be very expensive. Because of this expense, Internet access is usually provided by a slower-speed wide-area network (WAN) link such as a cable or DSL modem. In order to make the best use of the slower WAN
  • Netgear RO318 | RO318 Reference Manual - Page 82
    Reference Guide for the Model RO318 Cable/DSL Security Router Routers vary in performance and scale, number of routing protocols supported, and types of physical WAN connection they support. The Model RO318 Cable/DSL Security Router is a small office router that routes the IP protocol over a single-
  • Netgear RO318 | RO318 Reference Manual - Page 83
    Reference Guide for the Model RO318 Cable/DSL Security Router 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
  • Netgear RO318 | RO318 Reference Manual - Page 84
    Reference Guide for the Model RO318 Cable/DSL Security Router • 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
  • Netgear RO318 | RO318 Reference Manual - Page 85
    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
  • Netgear RO318 | RO318 Reference Manual - Page 86
    Reference Guide for the Model RO318 Cable/DSL Security Router 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
  • Netgear RO318 | RO318 Reference Manual - Page 87
    Reference Guide for the Model RO318 Cable/DSL Security Router Table B-2. Netmask Formats 255.255.255.252 /30 255.255.255.254 /31 255.255.255.255 /32 NETGEAR strongly recommends that you configure all hosts on a LAN segment to use the same netmask for the following reasons: • So that hosts
  • Netgear RO318 | RO318 Reference Manual - Page 88
    Reference Guide for the Model RO318 Cable/DSL Security Router Single IP Address Operation Using NAT In the past, if multiple PCs on a LAN needed to access the Internet simultaneously, you had to obtain a range of IP addresses from the ISP. This type of Internet account is more costly than a single-
  • Netgear RO318 | RO318 Reference Manual - Page 89
    Reference Guide for the Model RO318 Cable/DSL Security Router This scheme offers the additional benefit of simple firewall-like protection because the internal LAN addresses are not available to the Internet through the translated connection. All incoming inquiries are filtered out by the router.
  • Netgear RO318 | RO318 Reference Manual - Page 90
    Reference Guide for the Model RO318 Cable/DSL Security Router IP Configuration by DHCP When an IP-based local area network is installed, each PC must be configured with an IP address. If the PCs need to access the Internet, they should also be configured with a gateway address and one or more DNS
  • Netgear RO318 | RO318 Reference Manual - Page 91
    Reference Guide for the Model RO318 Cable/DSL Security Router Stateful Packet Inspection Unlike simple Internet sharing NAT routers, a firewall uses a process called stateful packet inspection to ensure secure firewall filtering to protect your network from attacks and intrusions. NAT performs a
  • Netgear RO318 | RO318 Reference Manual - Page 92
    Reference Guide for the Model RO318 Cable/DSL Security Router 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
  • Netgear RO318 | RO318 Reference Manual - Page 93
    Reference Guide for the Model RO318 Cable/DSL Security Router • Crossover cable A crossover cable is a special cable in which the transmit and receive pairs are exchanged at one of the two cable connectors. Crossover cables are often unmarked as such, and must be identified by comparing the two
  • Netgear RO318 | RO318 Reference Manual - Page 94
    Reference Guide for the Model RO318 Cable/DSL Security Router B-14 Networks, Routing, and Firewall Basics
  • Netgear RO318 | RO318 Reference Manual - Page 95
    as www.NETGEAR.com) to numeric IP addresses. DHCP. An Ethernet protocol specifying how a centralized DHCP server can assign network configuration information to multiple DHCP clients. The assigned information includes IP addresses, DNS addresses, and gateway (router) addresses. See Internet Protocol
  • Netgear RO318 | RO318 Reference Manual - Page 96
    Reference Guide for the Model FR314 Cable/DSL Firewall Router IPX See Internet Packet Exchange. ISP Internet service provider. Internet Packet Exchange Novell's internetworking protocol. Internet Protocol The main internetworking protocol used in the Internet. Used in conjunction with the
  • Netgear RO318 | RO318 Reference Manual - Page 97
    Reference Guide for the Model FR314 Cable/DSL Firewall Router PPP over Ethernet PPTP PSTN Point-to-Point Protocol RFC RIP router Routing Information Protocol subnet mask UTP VPN WAN wide area network Windows Internet Naming Service WINS PPPoE. PPP over Ethernet is a protocol for connecting remote
  • Netgear RO318 | RO318 Reference Manual - Page 98
    Reference Guide for the Model FR314 Cable/DSL Firewall Router 4 Glossary
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    6-5 router, initial 4-1 Connection ID/Name 4-6 Content Filter Log 4-12 content filtering 1-3 conventions typography xv crossover cable 1-4, 2-5, 7-2, B-13 customer support iii D default reset button 6-7 denial of service attack B-11 DHCP 1-4, 5-3, B-10 Index Index DHCP Client ID 3-6 DHCP Setup
  • Netgear RO318 | RO318 Reference Manual - Page 100
    for Macintosh 3-5 for Windows 3-2 K keyword blocking 4-9 L LAN Setup Menu 5-3 LEDs description 2-3 troubleshooting 7-2 log Content Filter 4-12 Security Events 4-12 sending 4-8 M MAC address 7-6, B-9 spoofing 4-7, 7-4 Macintosh 3-8 configuring for IP networking 3-5 2 DHCP Client ID 3-6 Obtaining ISP
  • Netgear RO318 | RO318 Reference Manual - Page 101
    B-2 S security 1-1, 1-3 Security Event Log 4-12 Service Name 4-5 Setup Wizard 4-1 spoof MAC address 7-4 stateful packet inspection 1-3, B-11 Static Routes 5-8 subnet addressing B-5 subnet mask 3-8, 3-9, B-5 T TCP/IP configuring for network 3-1 network, troubleshooting 7-5 TCP/IP properties verifying
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SM-RO318NA-0
March 2001
NETGEAR
, Inc.
4500 Great America Parkway
Santa Clara, CA 95054 USA
Phone 1-888-NETGEAR
Reference Guide for the
Model RO318 Cable/DSL
Security Router