NETGEAR D7000 User Manual

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 UDP packets.
• Open. In open mode, the modem router inspects UDP packets only.
11. Click the Apply button.
Your settings are saved.
Manage the MTU Size
The maximum transmission unit (MTU) is the largest data packet a network device transmits.
MTU Concepts
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 maximum transmission unit (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.
If you suspect an MTU problem, a common solution is to change the MTU to 1400. If you are willing to experiment,
you can gradually reduce the MTU from the maximum value of 1500 until the problem goes away. The following
table describes common MTU sizes and applications.
Manage the Internet Settings Manually
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Nighthawk AC1900 WiFi VDSL/ADSL Modem Router Model D7000

NETGEAR D7000 Specifications

General

Ethernet LAN	Yes
Cabling technology	10/100/1000Base-T(X)
Networking standards	IEEE 802.11a, IEEE 802.11ac, IEEE 802.11b, IEEE 802.11g, IEEE 802.11n, IEEE 802.3, IEEE 802.3ab, IEEE 802.3u
Ethernet LAN data rates	10, 100, 1000 Mbit/s
Ethernet LAN interface type	Gigabit Ethernet
Modulation	PSK
Wi-Fi band	Dual-band (2.4 GHz / 5 GHz)
Wi-Fi standards	802.11a, Wi-Fi 5 (802.11ac), 802.11b, 802.11g, Wi-Fi 4 (802.11n)
Top Wi-Fi standard	Wi-Fi 5 (802.11ac)
WLAN data transfer rate (max)	1300 Mbit/s
Memory card slot(s)	No
Ethernet LAN (RJ-45) ports	5
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity	3
DSL specification	VDSL, VDSL2, ADSL, ADSL2, ADSL2+
Web-based management	-
Firewall security	SPI, NAT
Security algorithms	WPA, WPA2-PSK, WPS
Product type	Tabletop router
Product color	Black
Housing material	Plastic
Flash memory	128 MB
Internal memory	256 MB
Processor cores	2
Processor frequency	1000 MHz
Windows operating systems supported	Windows 2000, Windows 7, Windows 8, Windows Vista, Windows XP
Cables included	LAN (RJ-45), Phone (RJ-11)
Supported network protocols	IPv6
Power source type	AC
Package type	Box

Weight and Dimensions

Depth	185 mm
Width	285 mm
Height	50 mm
Weight	750 g