is also indicated by the underline (_) under the IPv6 address. If no address is acquired, the field
displays Not Available.
•Router’s IPv6 Address On LAN. This field shows the IPv6 address that is acquired for the modem
router’s LAN interface.The number after the slash (/) is the length of the prefix, which is also indicated
by the underline (_) under the IPv6 address. If no address is acquired, the field displays Not Available.
6. If your IPv6 ISP gave you a specific host name, in the User Class (If Required) field, enter the host
If your IPv6 ISP did not give you a specific host name, you can leave this field blank.
7. To specify a domain name, in the Domain Name (If Required) field, enter a domain name.
If your ISP gave you a specific domain name, enter it in this field. (For example, Earthlink Cable might
require a host name of home, and Comcast sometimes supplies a domain name.)
If your ISP did not give you a specific domain name, you can either leave this field blank or enter the
domain name of your IPv6 ISP. (Do not enter the domain name for the IPv4 ISP here.) For example, if
your ISP’s mail server is mail.xxx.yyy.zzz, enter xxx.yyy.zzz as the domain name.
8. Select an IP Address Assignment radio button:
•Use DHCP Server. The modem router assigns IPv6 addresses to the devices on your home network
(the LAN) through a DHCP server. This method passes more information to LAN devices, but some
IPv6 systems might not support the DHCPv6 client function. This is the default setting.
•Auto Config.The modem router automatically configures its IPv6 address based on the IPv6 protocol.
9. To specify the interface ID for the IPv6 address of the modem router’s LAN interface, select the Use
This Interface ID check box, and enter the interface ID.
If you do not specify an ID here, the modem router generates one automatically from its MAC address.
10. Select the IPv6 filtering mode:
•Secured. In secured mode, which is the default mode, the modem router inspects both TCP and
•Open. In open mode, the modem router inspects UDP packets only.
11. Click the Apply button.
Your settings are saved.
Set Up an IPv6 PPPoE Connection
An IPv6 PPPoE connection is based on a dynamic IPv6 address that a PPPoE service assigns to the modem
Follow the directions that your IPv6 ISP gave you.Note
To set up an IPv6 PPPoE Internet connection:
1. Launch a web browser from a computer or WiFi device that is connected to the network.
2. Enter http://www.routerlogin.net.
Manage the Internet Settings Manually
Nighthawk AC1900 WiFi VDSL/ADSL Modem Router Model D7000v2