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Manage the Internet Settings Manually
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AC1600 WiFi VDSL/ADSL Modem Router Model D6400
The modem router automatically detects the information in the Router’s IPv6 Address On
LAN field. 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.
7. Select a Remote 6to4 Relay Router radio button:
• Auto.
Your modem router uses any remote relay modem router that is available on
the Internet.
This is the default setting.
• Static IP Address
. Enter the static IPv4 (not IPv6) address of the remote relay
modem router. Your IPv6 ISP usually provides this address.
8. Select an IPv6 Domain Name Server (DNS) Address radio button:
• Get Automatically from ISP.
The ISP’s DHCP server automatically assigns IPv6
DNS server addresses.
• Use These DNS Servers. Enter the static IPv6 (not IPv4) DNS server addresses that
your ISP provided to you.
9. 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.
T
he modem router automatically configures its IPv6 address based on the
IPv6 protocol.
10. 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.
11. Click the Apply button.
Your settings are saved.
Set Up an IPv6 Pass-Through Connection
In IPv6 pass-through mode, the modem router works as a Layer 2 Ethernet switch with two
ports (LAN and WAN Ethernet ports) for IPv6 packets. The modem router does not process
any IPv6 header packets.
Note: Follow the directions that your IPv6 ISP gave you.
To set up an IPv6 pass-through Internet connection:
1. Launch an Internet browser from a computer or WiFi device that is connected to the
network.
2. T
ype http://www
.routerlogin.net.
A login screen displays.