User manual NETGEAR WGR614V8

[. . . ] 4500 Great America Parkway Santa Clara, CA 95054 USA 202-10226-02 May 2008 © 2008 by NETGEAR, Inc. All rights reserved. Technical Support Please refer to the support information card that shipped with your product. When you register your product at http://www. netgear. com/register, we can provide you with faster expert technical support and timely notices of product and software upgrades. E-mail: support@netgear. com North American NETGEAR website: http://www. netgear. com Trademarks NETGEAR and the NETGEAR logo are registered trademarks, and RangeMax and Smart Wizard are trademarks of NETGEAR. [. . . ] For more information, see "Changing the MTU Size" on page 5-20. Click Apply to save the new configuration. Customizing Your Network Settings v1. 1, May 2008 4-7 54 Mbps Wireless Router WGR614v8 User Manual Configuring NAT Filtering Network Address Translation (NAT) determines how the router processes inbound traffic. Secured NAT provides a secured firewall to protect the computers on the LAN from attacks from the Internet, but might prevent some Internet games, point-to-point applications, or multimedia applications from functioning. Open NAT provides a much less secured firewall, but allows almost all Internet applications to function. For more information about NAT, see "How Your Computer Accesses a Remote Computer through Your Router" on page 5-2. In the NAT Filtering area, select either the Secured or the Open radio button. Click Apply to save the new configuration. Disabling SIP ALG Short for Session Initiation Protocol, SIP is a signaling protocol for Internet Telephony. SIP can establish sessions for features such as audio/videoconferencing, interactive gaming, and call forwarding to be deployed over IP networks, thus enabling service providers to integrate basic IP telephony services with Web, e-mail, and chat services. However, if your SIP applications cannot work with the router, you can disable the SIP ALG and try the applications again. Configuring Static Routes Static routes provide additional routing information to your router. Under usual circumstances, the router has adequate routing information after it has been configured for Internet access, and you do not need to configure additional static routes. You must configure static routes only for unusual cases such as multiple routers or multiple IP subnets located on your network. As an example of when a static route is needed, consider the following case: · · · Your primary Internet access is through a cable modem to an ISP. You have an ISDN router on your home network for connecting to the company where you are employed. Your company's network address 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. 1. x addresses. With this configuration, if you attempt to access a device on the 4-8 v1. 1, May 2008 Customizing Your Network Settings 54 Mbps Wireless Router WGR614v8 User Manual 134. 177. 0. 0 network, your router forwards your request to the ISP. The ISP forwards your request to the company where you are employed, and the request is likely to be denied by the company's firewall. 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. 1. 100. 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. The Gateway IP Address field specifies that all traffic for these addresses should be forwarded to the ISDN router at 192. 168. 1. 100. Private is selected only as a precautionary security measure in case RIP is activated. Select Static Routes under Advanced in the main menu. The Static Routes screen displays. Figure 4-4 To add or edit a static route: 1. [. . . ] If they do not match, you will not get a wireless connection to the Wireless-G Router. It should not be necessary to change the wireless channel unless you notice interference problems with another nearby wireless router or access point. Select a channel that is not being used by any other wireless networks within several hundred feet of your router. For more information about the wireless channel frequencies, click the link to the online document "Wireless Networking Basics" in Appendix B. [. . . ]