Related Manuals for NETGEAR N150R
Summary of Contents for NETGEAR N150R
- Page 1 Easy, Reliable & Secure N150 WiFi Router (N150R) User M anua l 350 East Plumeria Drive San Jose, CA 95134 August 2012 202-11000-01 v1.0...
- Page 2 N150 WiFi Router (N150R) Trademarks Brand and product names are trademarks or registered trademarks of their respective holders. Information is subject to change without notice. In the interest of improving internal design, operational function, and/or reliability, On Networks reserves the right to make changes to the products described in this document without notice.
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Page 3: Table Of Contents
Contents Chapter 1 Hardware Setup Unpack Your Router ......... . . 7 Position Your Router . - Page 4 N150 WiFi Router (N150R) Use the Router as a DHCP Server......30 Address Reservation .
- Page 5 N150 WiFi Router (N150R) Chapter 6 Advanced Settings Advanced WiFi Settings ........62 Restrict Wireless Access by MAC Address .
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Page 6: Chapter 1 Hardware Setup
G et t i n g to k now you r router This chapter explains how to set up your hardware. If you have already set up your N150R router, you can skip this chapter. Chapter 2 explains how to set up your Internet connection. -
Page 7: Unpack Your Router
N150 WiFi Router (N150R) Unpack Your Router Open the box and remove the router, cables, and installation guide. N150R WiFi Router Ethernet cable Power adapter Figure 1. Check the package contents Your box contains the following items: N150 WiFi Router (N150R) •... -
Page 8: Hardware Features
N150 WiFi Router (N150R) Away from electrical devices that are potential sources of interference. Equipment that • might cause interference includes ceiling fans, home security systems, microwaves, PCs, the base of a cordless phone, or 2.4 GHz cordless phone. Away from any large metal surfaces, such as a solid metal door or aluminum studs. Large •... -
Page 9: Back Panel
N150 WiFi Router (N150R) Table 1. Front panel LED descriptions Description Power/ • Solid green.Power is supplied to the router. Check • Blinking green. The router is starting up. • Off. Power is not supplied to the router. Wireless • Blinking green. Data is being transmitted or received over the wireless link. -
Page 10: Label
N150 WiFi Router (N150R) Label The label on the bottom of the router shows the preset WiFi network name and password, login information, MAC address, and serial number. Serial number MAC address Router login WiFi Network Name (SSID) Preset WiFi Password Figure 4. -
Page 11: Chapter 2 Getting Started
Getting Started This chapter contains the following sections: • Router Setup Preparation • Log In to the Router • Home Screen (Dashboard) • EZ Setup Wizard • Join Your Wireless Network... -
Page 12: Router Setup Preparation
N150 WiFi Router (N150R) Router Setup Preparation You can set up your router with the Setup Wizard as described in EZ Setup Wizard page 16, or manually as described in Settings). However, before you Internet Setup (Basic start the setup process, you need to have your ISP information and to make sure the laptops, PCs, and other devices in the network have the settings described here. -
Page 13: Log In To The Router
On Networks. WARNING: When uploading firmware to the N150R router, do not interrupt the Web browser by closing the window, clicking a link, or loading a new page. If the browser is interrupted, it could corrupt the firmware. -
Page 14: Unsuccessful Login
N150 WiFi Router (N150R) Unsuccessful Login Do the following if you do not see the login prompt: Check the LEDs on the front of router to make sure that the router is plugged in, its power is on, and the Ethernet cable between your computer and the router is connected to a LAN port. -
Page 15: Home Screen (Dashboard)
N150 WiFi Router (N150R) Home Screen (Dashboard) The router interface lets you view or change the router settings. The left column has menus, and the right column provides online help. The middle column is the screen for the current menu option. -
Page 16: Ez Setup Wizard
N150 WiFi Router (N150R) EZ Setup Wizard You can log in to the router and use EZ Setup to set up your Internet connection. To use the setup wizard: From the top of the router menu, select EZ Setup to display the following screen: Select either Yes or No, I want to configure the Router myself. -
Page 17: Join Your Wireless Network
N150 WiFi Router (N150R) Join Your Wireless Network Choose either the WPS method or the manual method to join your wireless network. WPS Method Wi-Fi Protected Setup (WPS) lets you connect to a secure WiFi network without typing its password. Instead, you press a button or enter a PIN. Some older WiFi equipment is not compatible with WPS. - Page 18 N150 WiFi Router (N150R) Look for your network and select it. The unique WiFi network name (SSID) and password is on the router label. If you changed these settings, then look for the network name that you used. Enter the router password and click Connect.
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Page 19: Chapter 3 Router Setup
Router Setup This chapter contains the following sections: • Internet Setup (Basic Settings) • Preset Security • WiFi Security Basics • WiFi Setup • Internet Port • LAN Ports • Quality of Service (QoS) Setup... -
Page 20: Internet Setup (Basic Settings)
N150 WiFi Router (N150R) Internet Setup (Basic Settings) The Basic Settings screen displays when you select No. I want to configure the Router myself in the Setup Wizard and is also available from the router menu. It is where you view or change ISP information. - Page 21 N150 WiFi Router (N150R) Account Name (If required). Enter the account name that your ISP provided. This might also be called the host name. Domain Name (If required). Enter the domain name that your ISP provided. • When your ISP requires a login, these fields display: Internet Service Provider.
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Page 22: Preset Security
N150 WiFi Router (N150R) Preset Security The router comes with preset security. This means that the Wi-Fi network name (SSID) and the WiFi network password (network key) are preset in the factory. You can find the preset SSID and passphrase on the bottom of the unit. -
Page 23: Restrict Access By Mac Address
N150 WiFi Router (N150R) Restrict Access by MAC Address You can enhance your network security by allowing access to only specific PCs based on their Media Access Control (MAC) addresses. You can restrict access to only trusted PCs so that unknown PCs cannot wirelessly connect to the router. The Wireless Station MAC address filtering adds additional security protection to the wireless security option that you have in force. -
Page 24: View Or Change Wifi Settings
N150 WiFi Router (N150R) The security option on each wireless device in the network must match the router. For • example, if you select a security option that requires a passphrase, be sure to use same passphrase for each wireless computer in the network. -
Page 25: Change Wpa Security Option And Passphrase
N150 WiFi Router (N150R) Name (SSID). The SSID is also known as the wireless network name. Enter a • 32-character (maximum) name in this field. This field is case-sensitive. The default SSID is randomly generated, and there is typically no need to change it. - Page 26 N150 WiFi Router (N150R) Select Setup > Internet Port to view the following screen: The following information is displayed: Disable Port Scan and DoS Protection. DoS protection protects your LAN against • denial of service attacks such as Syn flood, Smurf Attack, Ping of Death, Teardrop Attack, UDP Flood, ARP Attack, Spoofing ICMP, Null Scan, and many others.
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Page 27: Default Dmz Server
N150 WiFi Router (N150R) Default DMZ Server The default DMZ server feature is helpful when you are using some online games and videoconferencing applications that are incompatible with Network Address Translation (NAT). The router is programmed to recognize some of these applications and to work correctly with them, but there are other applications that might not function well. - Page 28 N150 WiFi Router (N150R) MSN portal America Online’s DSL service You use VPN and have severe performance problems. • You used a program to optimize MTU for performance reasons, and now you have • connectivity or performance problems. An incorrect MTU setting can cause Internet communication Note: problems.
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Page 29: Lan Ports
N150 WiFi Router (N150R) LAN Ports The LAN Ports screen allows configuration of LAN IP services such as Dynamic Host Configuration Protocol (DHCP) and Routing Information Protocol (RIP). The router is shipped preconfigured to use private IP addresses on the LAN side and to act as a DHCP server. -
Page 30: Use The Router As A Dhcp Server
N150 WiFi Router (N150R) IP Subnet Mask. The LAN subnet mask of the router. Combined with the IP address, the • IP subnet mask allows a device to know which other addresses are local to it, and which have to be reached through a gateway or router. -
Page 31: Address Reservation
N150 WiFi Router (N150R) 192.168.1.2 and 192.168.1.254, although you might want to save part of the range for devices with fixed addresses. The router delivers the following parameters to any LAN device that requests DHCP: An IP address from the range you have defined •... -
Page 32: Quality Of Service (Qos) Setup
QoS is an advanced feature that can be used to prioritize some types of traffic ahead of others. The N150R router can provide QoS prioritization over the wireless link and on the Internet connection. To configure QoS, use the QoS Setup screen. - Page 33 N150 WiFi Router (N150R) Click the Setup QoS Rule button to see the existing priority rules. You can edit or delete a rule by selecting its radio button and clicking either the Edit or Delete button. You can also delete all of the rules by simply clicking the Delete All button.
- Page 34 N150 WiFi Router (N150R) b. In the Connection Type list, select either TCP, UDP, or both (TCP/UDP). Specify the port number or range of port numbers that the application or game uses. From the Priority list, select the priority for Internet access for this traffic relative to other applications and traffic.
- Page 35 N150 WiFi Router (N150R) From the Priority list, select the priority for Internet access for this device’s traffic relative to other applications and traffic. The options are Low, Normal, High, and Highest. Click Apply to save this rule to the QoS Policy list and return to the QoS Setup screen.
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Page 36: Chapter 4 Security Settings
Security Settings This chapter contains the following sections: • Firewall Rules to Control Network Access • Set Up Site Blocking • Set Up Service Blocking • Set the Time Zone • Schedule Services • Set Up Email Alerts • Set Up Port Forwarding to Local Servers •... -
Page 37: Firewall Rules To Control Network Access
N150 WiFi Router (N150R) Firewall Rules to Control Network Access Your router has a firewall that blocks unauthorized access to your wireless network and permits authorized inbound and outbound communications. Authorized communications are established according to inbound and outbound rules. The firewall has the following two default rules. -
Page 38: Set Up Site Blocking
N150 WiFi Router (N150R) Set Up Site Blocking Use keyword blocking to prevent certain types of HTTP traffic from accessing your network. The blocking can be always or according to a scheduled. To block traffic: Select Security > Site Blocking. -
Page 39: Set Up Service Blocking
N150 WiFi Router (N150R) To specify a trusted computer: In the Trusted IP Address field, enter the IP address. Click Apply to save your changes. Set Up Service Blocking Services are functions performed by server computers at the request of client computers. For example, Web servers serve Web pages, time servers serve time and date information, and game hosts serve data about other players’... -
Page 40: Set The Time Zone
N150 WiFi Router (N150R) Set the Time Zone The router uses the Network Time Protocol (NTP) to obtain the current time and date from one of several network time servers on the Internet. To set the time zone: Select Security > Schedule. -
Page 41: Schedule Services
N150 WiFi Router (N150R) Schedule Services If you enabled service blocking in the Block Services screen or port forwarding in the Ports screen, you can set up a schedule for when blocking occurs or when access is not restricted. ... -
Page 42: Set Up Email Alerts
N150 WiFi Router (N150R) Set Up Email Alerts To receive logs and alerts by email, provide your email information in the E-mail screen and specify which alerts you want to receive and how often. Select Security > Email Alert to display the following screen: Figure 6. -
Page 43: Port Forwarding And Triggering
N150 WiFi Router (N150R) Time. This setting specifies the time of day to send the log. This is relevant when the log is sent daily or weekly. If the Weekly, Daily, or Hourly option is selected and the log fills up... - Page 44 N150 WiFi Router (N150R) Destination port number. 80, which is the standard port number for a web server process. Your router creates an entry in its internal session table describing this communication session between your computer and the web server at www.example.com. Before sending the web page request message to www.example.com, your router stores the original...
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Page 45: Port Triggering To Open Incoming Ports
N150 WiFi Router (N150R) Port Triggering to Open Incoming Ports In the preceding example, requests are sent to a remote computer by your router from a particular service port number. Replies from the remote computer to your router are directed to that port number. -
Page 46: Port Forwarding To Permit External Host Communications
N150 WiFi Router (N150R) Only one computer at a time can use the triggered application. Note: Port Forwarding to Permit External Host Communications In both of the preceding examples, your computer initiates an application session with a server computer on the Internet. However, you might need to allow a client computer on the Internet to initiate a connection to a server computer on your network. -
Page 47: How Port Forwarding Differs From Port Triggering
IP address. To set up port forwarding: To ensure that your server computer always has the same IP address, Tip: use the reserved IP address feature of your N150R router. Security Settings... -
Page 48: Add A Custom Service
N150 WiFi Router (N150R) Select Advanced > Port Forwarding/Port Triggering to display the following screen: Port Forwarding is selected as the service type. From the Service Name list, select the service or game that you will host on your network. If the service does not appear in the list, see on page 48. -
Page 49: Editing Or Deleting A Port Forwarding Entry
N150 WiFi Router (N150R) In the Starting Port field, enter the beginning port number. If the application uses a single port, enter the same port number in the Ending Port • field. If the application uses a range of ports, enter the ending port number of the range in •... - Page 50 N150 WiFi Router (N150R) the specified incoming port or ports, and forwards incoming traffic on the triggered ports to the triggering computer. Port forwarding creates a static mapping of a port number or range to a single local computer. Port triggering can dynamically open ports to any computer that needs them and can close the ports when they are no longer needed.
- Page 51 N150 WiFi Router (N150R) This value controls the inactivity timer for the designated inbound ports. The inbound ports close when the inactivity time expires. This is required because the router cannot be sure when the application has terminated. Click Add Service to display the following screen: In the Service Name field, type a descriptive service name.
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Page 52: Chapter 5 Network Management
Network Management This chapter contains the following sections: • Upgrade the Firmware • Manually Check for Firmware Upgrades • Backup Settings • Change Password • View Router Status • View Attached Devices • Logs... -
Page 53: Upgrade The Firmware
Click Yes to allow the router to download and install the new firmware. The upgrade process could take a few minutes. When the upload is complete, your router restarts. Go to the N150R support page and read the new firmware release notes to determine whether you need to reconfigure the router after upgrading. -
Page 54: Manually Check For Firmware Upgrades
Log in to your router, select Management > Router Status, and make note of the firmware version of your router. Go to the N150R support page on the On Networks website at http://www.on-networks.com/support. Compare the version number of the most recent firmware offered to the firmware version of your router. -
Page 55: Backup Settings
N150 WiFi Router (N150R) Log in to your router and select Management > Upgrade Firmware. Click Browse, and locate the firmware image that you downloaded to your computer (the file ends in .img or .chk). Click Upload to send the firmware to the router. -
Page 56: Change Password
N150 WiFi Router (N150R) Change Password For security reasons, the router has its own user name and password that default to admin and admin. You can and should change these to a secure user name and password that are easy to remember. The ideal password contains no dictionary words from any language and is a mixture of upper case and lower case letters, numbers, and symbols. -
Page 57: View Router Status
N150 WiFi Router (N150R) Click Apply to save your changes. When you use your browser to access the router, the login window displays. If password recovery is enabled, when you click Cancel, the password recovery process starts. You can then enter the saved answers to the security questions to recover the password. -
Page 58: Wireless Settings
N150 WiFi Router (N150R) DHCP server. If Off, the router does not assign IP addresses to PCs on the LAN. If On, the router does assign IP addresses to PCs on the LAN. Wireless Settings on page 23 for a more detailed description of these settings. -
Page 59: Connection Status
N150 WiFi Router (N150R) Connection Status In the Router Status screen, click the Connection Status button: Connection Time. The time elapsed since the last connection to the Internet through the • DSL port. Connecting status. The connection status. • Negotiation. On or Off. -
Page 60: Logs
N150 WiFi Router (N150R) Logs The router logs security-related events such as denied incoming service requests, hacker probes, and administrator logins. If you enable content filtering in the Block Sites screen, the Logs screen show you when someone on your network tries to access a blocked site. If you enable email notification, you will receive these logs in an email message. -
Page 61: Chapter 6 Advanced Settings
Advanced Settings This chapter describes the advanced features of your router. The information is for readers with advanced networking knowledge who want to set the router up for unique situations such as when remote access from the Internet by IP or domain name is needed. For information about port forwarding and port triggering, see Note: Chapter 4, Security... -
Page 62: Advanced Wifi Settings
N150 WiFi Router (N150R) Advanced WiFi Settings Select Advanced > WiFi Settings to display the following screen: The following settings are available in this screen: Enable Wireless Router Radio. You can completely turn off the wireless portion of the wireless router by clearing this check box. Select this check box again to enable the wireless portion of the router. -
Page 63: Restrict Wireless Access By Mac Address
N150 WiFi Router (N150R) Restrict Wireless Access by MAC Address You can set up a list of computers and wireless devices that are allowed to join the wireless network. This list is based on the unique MAC address of each computer and device. -
Page 64: Wifi Repeating (Wds)
Click Apply. WiFi Repeating (WDS) You can set the N150R router up to be used as a wireless access point (AP). Doing this enables the router to act as a wireless repeater. A wireless repeater connects to another wireless router as a client where the network to which it connects becomes the ISP service. -
Page 65: Wifi Repeating
N150 WiFi Router (N150R) If you use the wireless repeating function, you need to select either Note: WEP or None as a security option in the Wireless Settings screen. The WEP option displays only if you select the wireless mode Up to 54 Mbps in the Wireless Settings screen. -
Page 66: Set Up The Base Station
N150 WiFi Router (N150R) Disable Wireless Client Association. If your router is the repeater, selecting this check box means that wireless clients cannot associate with it. Only LAN client associations are allowed. If you are setting up a point-to-point bridge, select this check box. -
Page 67: Set Up A Repeater Unit
Use a wired Ethernet connection to set up the repeater unit to avoid conflicts with the wireless connection to the base station. If you are using the N150R base station with a different router as the Note: repeater, you might need to change additional configuration settings. -
Page 68: Dynamic Dns
N150 WiFi Router (N150R) Dynamic DNS If your Internet service provider (ISP) gave you a permanently assigned IP address, you can register a domain name and have that name linked with your IP address by public Domain Name Servers (DNS). However, if your Internet account uses a dynamically assigned IP address, you do not know in advance what your IP address will be, and the address can change frequently. -
Page 69: Static Routes
N150 WiFi Router (N150R) For example, the wildcard feature causes *.yourhost.dyndns.org to be aliased to the same IP address as yourhost.dyndns.org. Click Apply to save your configuration. Static Routes Static routes provide additional routing information to your router. Typically, you do not need to add static routes. -
Page 70: Remote Management
Usually, a setting of 2 or 3 works, but if this is a direct connection, set it to 1. Click Apply to add the static route. Remote Management The remote management feature lets you upgrade or check the status of your N150R router over the Internet. ... -
Page 71: Universal Plug And Play
N150 WiFi Router (N150R) For enhanced security, restrict access to as few external IP Note: addresses as practical. To allow access from a single IP address on the Internet, select Only This • Computer. Enter the IP address that will be allowed access. - Page 72 N150 WiFi Router (N150R) To turn on Universal Plug and Play: Select Advanced > UPnP. The UPnP screen displays. The available settings and information in this screen are: Turn UPnP On. UPnP can be enabled or disabled for automatic device configuration.
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Page 73: Chapter 7 Troubleshooting
Troubleshooting This chapter provides information about troubleshooting your N150 WiFi Router (N150R). After each problem description, instructions are provided to help you diagnose and solve the problem. As a first step, please review the Quick Tips. On Networks provides helpful articles, documentation, and the latest Tip: software updates at http://www.on-networks.com/support. -
Page 74: Quick Tips
N150 WiFi Router (N150R) Quick Tips This section describes tips for troubleshooting some common problems Sequence to Restart Your Network Be sure to restart your network in this sequence: Turn off and unplug the modem. Turn off the router and computers. -
Page 75: Troubleshooting With The Leds
N150 WiFi Router (N150R) Troubleshooting with the LEDs After you turn on power to the router, the following sequence of events should occur: When power is first applied, verify that the Power/Test LED is on. Verify that the Power/Test LED starts blinkiing green, indicating that the self-test is running. -
Page 76: Cannot Log In To The Router
N150 WiFi Router (N150R) Cannot Log In to the Router If you are unable to log in to the router from a computer on your local network, check the following: If you are using an Ethernet-connected computer, check the Ethernet connection •... -
Page 77: Troubleshooting Pppoe
N150 WiFi Router (N150R) If your router cannot obtain an IP address from the ISP, you might need to force your cable or DSL modem to recognize your new router by restarting your network, as described in on page 74. -
Page 78: Troubleshooting Internet Browsing
N150 WiFi Router (N150R) Select Management > Router Status. Click Connection Status. If all of the steps indicate OK, then your PPPoE connection is up and working. If any of the steps indicate Failed, you can attempt to reconnect by clicking Connect. The router continues to attempt to connect indefinitely. -
Page 79: Wireless Connectivity
N150 WiFi Router (N150R) Wireless Connectivity If you are having trouble connecting wirelessly to the router, try to isolate the problem. Does the wireless device or computer that you are using find your wireless network? • If not, check the WiFi LED on the front of the router. It should be lit. If it is not, you can enable the wireless router radio from Advanced >... -
Page 80: Troubleshoot Your Network Using The Ping Utility
N150 WiFi Router (N150R) Troubleshoot Your Network Using the Ping Utility Most network devices and routers contain a ping utility that sends an echo request packet to the designated device. The device then responds with an echo reply. Troubleshooting a network is made easy by using the ping utility in your computer or workstation. -
Page 81: Test The Path From Your Computer To A Remote Device
N150 WiFi Router (N150R) Test the Path from Your Computer to a Remote Device After verifying that the LAN path works correctly, test the path from your computer to a remote device. From the Windows toolbar, click the Start button, and then select Run. -
Page 82: Appendix A Supplemental Information
Supplemental Information This appendix covers the following topics: • Default Factory Settings • Technical Specifications... -
Page 83: Default Factory Settings
N150 WiFi Router (N150R) Default Factory Settings Table 1. N150R Router Default Factory Settings Feature Default Setting Routerr login URL http://www.mywifirouter.com Router login (case-sensitive) User name: admin printed on product label Password: admin WAN MAC Address Default hardware address (on label) -
Page 84: Technical Specifications
N150 WiFi Router (N150R) Table 1. N150R Router Default Factory Settings (continued) Feature Default Setting Inbound (communications coming Disabled (bars all unsolicited requests except for traffic on port 80, the in from the Internet) http port) Outbound (communications going Enabled (all) out to the Internet) *. -
Page 85: Appendix B Notification Of Compliance
Notification of Compliance Wi reles s Routers, G ateways, A Ps Regulatory Compliance Information Note: This section includes user requirements for operating this product in accordance with National laws for usage of radio spectrum and operation of radio devices. Failure of the end-user to comply with the applicable requirements may result in unlawful operation and adverse action against the end-user by the applicable National regulatory authority. - Page 86 N150 WiFi Router (N150R) Español Por medio de la presente On Networks Inc. declara que el Radiolan cumple con los [Spanish] requisitos esenciales y cualesquiera otras disposiciones aplicables o exigibles de la Directiva 1999/5/CE. Ελληνική ΜΕ ΤΗΝ ΠΑΡΟΥΣΑ On Networks Inc. ∆ΗΛΩΝΕΙ ΟΤΙ Radiolan ΣΥΜΜΟΡΦΩΝΕΤΑΙ...
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Page 87: Fcc Declaration Of Conformity
We, On Networks, Inc., 350 East Plumeria Drive, San Jose, CA 95134, declare under our sole responsibility that the N150 WiFi Router (N150R) complies with Part 15 Subpart B of FCC CFR47 Rules. Operation is subject to the following two conditions: This device may not cause harmful interference, and •... -
Page 88: Canadian Department Of Communications Radio Interference Regulations
Canadian Department of Communications Radio Interference Regulations This digital apparatus (N150 WiFi Router (N150R)) does not exceed the Class B limits for radio-noise emissions from digital apparatus as set out in the Radio Interference Regulations of the Canadian Department of Communications. -
Page 89: Index
Index port forwarding access port triggering remote access control repeater unit turning on connecting wirelessly access points content filtering accessing remote computer crossover cable adding CTS/RTS Threshold custom service custom service (port forwarding) priority rules address reservation addresses, DNS advertisement period data packets, fragmented alerts, emailing daylight savings time... - Page 90 N300 WiFi Router (N300R) firewalls LEDs inbound rules described troubleshooting and firmware, upgrading at log in local servers, port forwarding to automatic check logging in manually changing password fragmentation length router fragmented data packets types front panel upgrade firmware logs logs, emailing games, online, QoS for gateway IP address...
- Page 91 N300 WiFi Router (N300R) ports static routes filtering statistics, viewing forwarding status ports,listed, back panel Internet connection positioning the router router Power LED, troubleshooting and syslog PPPoE (PPP over Ethernet) Preamble mode preset security TCP/IP primary DNS addresses no Internet connection prioritizing traffic time to live, advertisement time zone, setting...
- Page 92 N300 WiFi Router (N300R) wireless radio wireless region wireless repeating base station repeater unit wireless security wireless security options wireless settings checking for correct Wireless Settings screen wireless settings, SSID broadcast WMM (Wi-Fi Multimedia)