Netgear DC112A User's Guide Page 39
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Internet Setup
39
AirCard Smart Cradle
This setting specifies how the cradle assigns IPv6 addresses to the devices on your
home network (the LAN).
10. (Optional) Select the Use This Interface ID check box and specify the interface ID to be
used for the IPv6 address of the cradle’s LAN interface.
If you do not specify an ID here, the cradle generates one automatically from its MAC
address.
11. Click the Apply button.
Your settings are saved.
Change the MTU Size
The maximum transmission unit (MTU) is the largest data packet a network device transmits.
When one network device communicates across the Internet with another, the data packets
travel through many devices along the way. If a device in the data path uses a lower MTU
setting than the other devices, the data packets must be split or “fragmented” to
accommodate the device with the smallest MTU.
The best MTU setting for NETGEAR equipment is often the default value. In some situations,
changing the value fixes one problem but causes another. Leave the MTU unchanged unless
one of these situations occurs:
• You experience problems connecting to your ISP or other Internet service, and the
technical support of the ISP. These web-based applications might require an MTU
change:
- A secure website that does not open, or displays only part of a web page
- Yahoo email
- MSN portal
- America Online’s DSL service
• You use VPN and experience severe performance problems.
• You used a program to optimize MTU for performance reasons and now you are
experiencing connectivity or performance problems.
Note: An incorrect MTU setting can cause Internet communication
problems. For example, you might not be able to access certain
websites, frames within websites, secure login pages, or FTP or POP
servers.
To change the MTU size:
1. Launch a web browser from a computer or wireless device that is connected to the
Smart Cradle.
2. In the address field of the browser, enter http://netgear.cradle or http://192.168.100.1.
- AirCard® Smart Cradle 1
- Compliance 2
- Trademarks 2
- Contents 3
- Chapter 6 Network Settings 4
- Chapter 11 Troubleshooting 6
- Front Panel 8
- Table 1. LED descriptions 9
- Rear Panel 10
- Hardware Setup 11
- Position the Smart Cradle 13
- Install Your Smart Cradle 14
- Connect to the AirCard Smart 16
- Wired Connection 17
- WiFi Connection 17
- Types of Logins 18
- Change the Language 18
- Internet Setup 20
- Manage a Mobile Hotspot 21
- Internet port 22
- Scroll to 26
- Change the MTU Size 39
- Table 2. Common MTU sizes 40
- Control Internet Access 41
- Set Up Parental Controls 42
- To set up access control: 44
- To block Internet sites: 47
- To block services: 48
- To schedule blocking: 50
- To add a custom service: 54
- Set Up Port Triggering 57
- Add a Port Triggering Service 58
- Enable Port Triggering 59
- Optimize Performance 61
- To enable upstream QoS: 62
- Add QoS Rules 63
- Set Up QoS for a MAC Address 66
- Edit an Upstream QoS Policy 67
- Delete an Upstream QoS Policy 67
- To disable WMM QoS: 69
- Network Settings 70
- View WAN Settings 71
- Reserve LAN IP Addresses 78
- Specify Basic WiFi Settings 80
- To change the WPA settings: 83
- Set Up a Guest Network 84
- Control the Wireless Radios 86
- Set Up a Wireless Schedule 87
- Specify WPS Settings 88
- Cable this port to a LAN port 89
- Smart WiFi Router 91
- To set up bridge mode: 92
- To set up Facebook WiFi: 94
- Change the admin Password 98
- Recover the admin Password 99
- AirCard Smart Cradle 100
- AirCard Smart Cradle 101
- Back Up Settings 103
- Custom Static Routes 106
- Edit a Static Route 107
- Delete a Static Route 108
- Remote Management 109
- Monitor Internet Traffic 111
- 6. Click the Apply button 113
- Your settings are saved 113
- USB Device Requirements 115
- Access a USB Device 115
- Use FTP Within the Network 120
- To view network folders: 121
- To add a network folder: 122
- To edit a network folder: 123
- Approve USB Devices 124
- Safely Remove a USB Device 125
- This takes the drive offline 126
- Internet 127
- To set up FTP access: 128
- Your Personal FTP Server 130
- FTP Directory: FTP:// 131
- FTP Directory: 131
- To change your settings: 134
- Share a USB Printer 135
- To download the utility: 137
- To install the utility: 137
- Use the Shared Printer 138
- To change the language: 142
- To specify the time-out: 142
- Troubleshooting 144
- Troubleshoot with the LEDs 145
- Cannot Log In to the Cradle 146
- Cannot Access the Internet 147
- Troubleshoot PPPoE 148
- Changes Not Saved 149
- Cellular Network Connectivity 150
- WiFi Connectivity 150
- Supplemental Information 153
- Factory Settings 154
- Supplemental Information 155
- Technical Specifications 156
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