Netgear AC1900 Nighthawk™ Owner's Manual

MTU size (in bytes). The normal MTU (maximum transmit unit) value for most 
Ethernet networks is 1500 bytes, or 1492 bytes for PPPoE connections. Change the 
MTU only if you are sure that it is necessary for your ISP connection. See 

40.

Select an IPv6 Domain Name Server (DNS) Address radio button:

Get Automatically from ISP. Your ISP uses DHCP to assign your DNS servers. Your 
ISP automatically assigns this address.

Use These DNS Servers. If you know that your ISP requires specific servers, select 
this option. Enter the IP address of your ISP’s primary DNS server. If a secondary 
DNS server address is available, enter it also.

Specify how the router assigns IPv6 addresses to the devices on your home network (the 

LAN) by selecting one of the following radio buttons:

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.

(Optional) Select the Use This Interface ID check box and specify the interface ID that you 

want 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 remote relay router is the router to which your router creates a 6to4 tunnel. Make sure 
that the IPv4 Internet connection is working before you apply the 6to4 tunnel settings for the 
IPv6 connection.

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Launch an Internet browser from a computer or wireless device that is connected to the 

network.

Type http://www.routerlogin.net or http://www.routerlogin.com.

A login screen displays.

Enter the router user name and password.

The user name is admin. The default password is password. The user name and 
password are case-sensitive.

The BASIC Home screen displays.

Select ADVANCED > Advanced Setup > IPv6.

The IPv6 screen displays.

In the Internet Connection Type list, select 6to4 Tunnel.