Netgear DC112A – AirCard Smart Cradle 사용자 설명서

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Internet Setup 
39
 AirCard Smart Cradle
6. 
In the Login field, enter the login information for the ISP connection.
This is usually the name that you use in your email address. For example, if your main 
mail account is JerAB@ISP.com, you would type JerAB in this field. Some ISPs (like 
Mindspring, Earthlink, and T-DSL) require that you use your full email address when you 
log in. If your ISP requires your full email address, type it in this field.
7. 
In the Password field, enter the password for the ISP connection.
8. 
In the Service Name field, enter a service name.
If your ISP did not provide a service name, leave this field blank.
Note:
The default setting of the Connection Mode list is Always On to 
provide a steady IPv6 connection. The cradle never terminates the 
connection. If the connection is terminated, for example, when the 
modem is turned off, the cradle attempts to reestablish the connection 
immediately after the PPPoE connection becomes available again.
9. 
Select an IP Address Assignment radio button:
Use DHCP Server. This method passes more information to LAN devices but some 
IPv6 systems might not support the DHCv6 client function.
Auto Config. This is the default setting.
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: