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N150 Wireless ADSL2+ Modem Router DGN1000Bv3
• If your ISP did not provide details, you can select 6to4 Tunnel.
• If you are not sure what type of IPv6 connection the modem router uses, select Auto
Detect so that the modem router detects the IPv6 type that is in use.
• If your Internet connection does not use PPPoE, DHCP
, a fixed IP address, or
pass-through but is IPv6, select Auto Config
.
Note: For IPv6 address requirements, information about IPv6 filtering, and
detailed information about IPv6 Internet connection types, see the
following sections.
3. Click the Apply button.
Your settings are saved.
Requirements for Entering IPv6 Addresses
IPv6 addresses are denoted by eight groups of hexadecimal quartets that are separated by
colons. Any four-digit group of zeroes within an IPv6 address can be reduced to a single zero
or altogether omitted.
The following errors invalidate an IPv6 address:
• More than eight groups of hexadecimal quartets
• More than four hexadecimal characters in a quartet
• More than two colons in a row
IPv6 Filtering
When you enable IPv6 and select any connection type other than IPv6 Pass Through, the
modem router starts the stateful packet inspection (SPI) firewall function on the WAN
interface. The modem router creates connection records and checks every inbound IPv6
packet. If the inbound packet is not destined to the modem router itself and the modem router
does not expect to receive such a packet, or the packet is not in the connection record, the
modem router blocks this packet. This function has two modes:
• Secured. In secured mode, the modem router inspects both
TCP and UDP packets.
• Open
. In open mode, the modem router inspects UDP packets only.
Auto Detect
To set up an IPv6 Internet connection through auto detection:
1. Select ADVANCED >
Advanced Setup > IPv6.
2. From the Internet Connection T
ype menu, select Auto Detect.