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Netgear jr6150-100rus — понимание работы маршрутизатора и NAT для интернет-соединений [119/159]
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Advanced Settings
119
A750 Wireless Dual Band Gigabit Router JR6150
• Destination address. The IP address of www.example.com, which your computer
finds by asking a DNS server.
• Destination port number. 80, which is the standard port number for a web server
process.
3. 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
information and then performs Network Address Translation (NAT) and modifies the
following source information in the request message:
• The source address is replaced with your router’
s public IP add
ress. This
replacement is necessary because your computer uses a private IP address that is
not globally unique and cannot be used on the Internet.
• The source port number is changed to a number chosen by the router, such as
33333. This change is necessary because two computers could ind
ependently be
using the same session number.
Your router then sends this request message through the Internet to the web server at
www.example.com.
4. The web server at www.example.com composes a return message with the requested web
page
data. The web server then sends this reply message to your router. The return
message contains the following address and port information:
• Source address.
The IP address of www
.example.com.
• Source port number. 80, which is the standard port number for a web server
process.
• Destination address.
The public IP address of your router.
• Destination port number. 33333.
5. When
your router receives
the incoming message, it checks its session table for an active
session for port number 33333. Finding an active session, the router then modifies the
message to restore the original address information replaced by NAT. Your router sends
this reply message to your computer, which displays the web page from
www.example.com. The message now contains the following address and port information:
• Source address.
The IP address of www
.example.com.
• Source port number. 80, which is the standard port number for a web server
process.
• Destination address.
Y
our computer’s IP address.
• Destination port number. 5678, which is the browser session that made the initial
request.
6. When you finish your browser session, your router eventually detects a period of inactivity in
the
communications.
Your router then removes the session information from its session
table, and port number 33333 no longer accepts incoming traffic.
Содержание
- User manual p.1
- A750 wireless dual band gigabit router jr6150 p.1
- A750 wireless dual band gigabit router jr6150 p.2
- Support p.2
- Compliance p.2
- Trademarks p.2
- Contents p.3
- Chapter 4 genie advanced home p.3
- Chapter 3 genie basic settings p.3
- Chapter 2 get started with netgear genie p.3
- Chapter 1 hardware setup p.3
- Chapter 7 administration p.4
- Chapter 6 security p.4
- Chapter 5 usb port p.4
- Chapter 9 troubleshooting p.5
- Chapter 8 advanced settings p.5
- Appendix a supplemental information p.6
- Hardware setup p.7
- Get to know your router p.7
- Unpack your router p.8
- Position your router p.9
- The router front panel has the status leds and icons shown in the following figure p.10
- Hardware features p.10
- Front panel p.10
- Before you cable your router take a moment to become familiar with the label and the front and back panels pay particular attention to the leds on the front panel p.10
- Wireless on off button pressing and holding the wireless lan button for two seconds turns the 2 ghz and 5 ghz wireless radios on and off if the wireless leds are lit the wireless radios are on if the leds are off the wireless radios are turned off and you cannot connect wirelessly to the router p.11
- The wlan and wps buttons toggle the wlan and wps functions on and off as follows p.11
- Table 1 front panel led descriptions p.11
- Hardware setup p.11
- A750 wireless dual band gigabit router jr6150 p.11
- Back panel p.12
- Product label p.13
- Get started with netgear genie p.14
- Connect to the router p.14
- Types of logins and access p.15
- Router setup preparation p.15
- Gather isp information p.15
- Wireless devices and security settings p.15
- Use standard tcp ip properties for dhcp p.15
- Netgear genie setup p.16
- Use netgear genie after installation p.17
- Upgrade router firmware p.18
- Change the password p.18
- Password recovery p.19
- Wi fi protected setup method p.21
- Manual method p.21
- Add wireless devices or computers to your network p.21
- Your internet connection and network p.23
- Genie basic settings p.23
- Internet setup p.24
- Basic wireless settings p.25
- Wpa psk wpa2 psk and wpa psk wpa2 psk mixed mode p.28
- Wpa wpa2 enterprise p.29
- Attached devices p.32
- Parental controls p.33
- Guest networks p.36
- Fastlane p.38
- Specify custom settings p.39
- Genie advanced home p.39
- Setup wizard p.40
- Wps wizard p.41
- Wan setup p.43
- Default dmz server p.44
- Change the mtu size p.45
- Lan setup p.47
- Use the router as a dhcp server p.49
- Address reservation p.50
- Quality of service setup p.52
- Quality of service priority rules and internet access p.52
- Wi fi multimedia quality of service for wireless traffic p.52
- Bandwidth control p.53
- Manage qos rules p.54
- Create a qos rule for an application or online game p.56
- Create a qos rule for ethernet lan ports p.58
- Create a qos rule for a mac address p.59
- Usb port p.64
- Enhance your local network p.64
- Enhance your local network p.65
- Set up network storage p.66
- Connect or safely remove a usb drive p.66
- View or configure a usb drive p.67
- Configure the usb storage device and access settings p.68
- Configure the available network folders p.70
- Specify approved usb devices p.74
- Access and share your network storage p.75
- Common uses of network sharing p.75
- Share photos and multimedia p.76
- Send large files over the internet p.76
- Print high quality photos from a non shared printer p.76
- Access your usb storage device locally p.77
- Access your usb storage device remotely p.78
- Set up a network printer p.79
- Security p.84
- Keep unwanted content out of your network p.84
- Keyword blocking of http traffic p.85
- Port filtering to block services p.87
- Schedule blocking p.88
- Security event email notifications p.89
- Manage your network p.91
- Administration p.91
- Router information pane p.92
- View router status p.92
- Internet port pane p.93
- Statistics p.94
- Connection status p.96
- Wireless settings panes p.98
- Guest network panes p.99
- View logs of web access or attempted web access p.100
- Manage the configuration file p.101
- Back up settings p.101
- Restore configuration settings p.102
- Upgrade the router firmware p.104
- Fine tune your network p.106
- Advanced settings p.106
- Control the wireless radio p.107
- Advanced wireless settings p.107
- Set up a wireless schedule p.108
- View or change wps settings p.109
- Set up a wireless access list by mac address p.110
- Wireless ap p.112
- Wireless repeating function p.114
- Set up the base station p.115
- Set up a repeater p.116
- Remote computer access basics p.118
- Port forwarding and port triggering configuration concepts p.118
- Port triggering to open incoming ports p.120
- Port forwarding to permit external host communications p.121
- Set up port forwarding to local servers p.122
- How port forwarding differs from port triggering p.122
- Add a custom service p.123
- Edit or delete a port forwarding entry p.125
- Application example make a local web server public p.126
- Set up port triggering p.127
- Dynamic dns p.131
- Static routes p.132
- Remote management p.136
- Universal plug and play p.138
- Traffic meter p.139
- Troubleshooting p.143
- Diagnose and solve problems p.143
- Wireless settings p.144
- Sequence to restart your network p.144
- Quick tips p.144
- Network settings p.144
- Check ethernet cable connections p.144
- Troubleshooting with the leds p.145
- Power check led stays amber p.145
- Power check led is off or blinking p.145
- Internet or ethernet lan port leds are off p.146
- Wps fastlane button blinks amber p.146
- Wireless leds are off p.146
- Leds never turn off p.146
- Cannot log in to the router p.147
- Cannot access the internet p.147
- Troubleshooting pppoe p.149
- Troubleshooting internet browsing p.149
- Wireless connectivity p.150
- Changes not saved p.150
- Troubleshoot your network using the ping utility p.151
- Test the lan path to your router p.151
- Restore the factory settings and password p.151
- Test the path from your computer to a remote device p.152
- Supplemental information p.153
- Factory settings and technical specifications p.153
- A supplemental information p.153
- Table 3 router default settings p.154
- Supplemental information p.154
- Factory default settings p.154
- A750 wireless dual band gigabit router jr6150 p.154
- Table 4 router technical specifications p.155
- Table 3 router default settings continued p.155
- Supplemental information p.155
- Specifications p.155
- A750 wireless dual band gigabit router jr6150 p.155
- A750 wireless dual band gigabit router jr6150 p.157
- A750 wireless dual band gigabit router jr6150 p.158
- A750 wireless dual band gigabit router jr6150 p.159
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Узнайте, как маршрутизаторы используют NAT для управления интернет-соединениями. Пошаговое объяснение процесса передачи данных между вашим устройством и веб-сервером.