Netgear R6220 - AC1200 Smart WiFi Router with External Antennas 사용자 설명서

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 router assigns IPv6 addresses to the devices on your home 
network (the LAN). 

(Optional) Select the Use This Interface ID check box and specify the interface ID to be 

used for the IPv6 address of the router’s LAN interface.

If you do not specify an ID here, the router generates one automatically from its MAC 
address.

Click the Apply button.

Your settings are saved.

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 either the ISP or NETGEAR recommends changing the MTU setting. 
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.

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.