Chapter 6 Broadband
VMG3925-B10C/B30C User’s Guide
83
Tunnel
The DS-Lite (Dual Stack Lite) fields display when you set the
IPv4/IPv6 Mode
field to
IPv6 Only
.
Enable Dual Stack Lite to let local computers use IPv4 through an ISP’s IPv6 network. See
for more information.
Enable DS-Lite
This is available only when you select
IPv6 Only
in the
IPv4/IPv6 Mode
field. Select
Enable
to let
local computers use IPv4 through an ISP’s IPv6 network.
DS-Lite Relay
Server IP
Specify the transition router’s IPv6 address.
6RD
The 6RD (IPv6 rapid deployment) fields display when you set the
IPv6/IPv4 Mode
field to
IPv4 Only
for more information.
6RD
Select
Enable
to tunnel IPv6 traffic from the local network through the ISP’s IPv4 network.
Select
Manually Configured
if you have the IPv4 address of the relay server. Otherwise, select
Automatically configured by DHCPC
to have the VMG detect it automatically through DHCP.
The
Automatically configured by DHCPC
option is configurable only when you set the method of
encapsulation to
IPoE
.
Service Provider
IPv6 Prefix
Enter an IPv6 prefix for tunneling IPv6 traffic to the ISP’s border relay router and connecting to the
native IPv6 Internet.
IPv4 Mask
Length
Enter the subnet mask number (1~32) for the IPv4 network.
Border Relay
IPv4 Address
When you select
Manually Configured
, specify the relay server’s IPv4 address in this field.
DHCPC Options (This is available only when you select
IPv4 Only
or
IPv4 IPv6 DualStack
in the
IPv4/IPv6 Mode
field.)
Request Options Select
Option 43
to have the VMG automatically add vendor specific information in the DHCP
packets to request the vendor specific options from the DHCP server.
Select
Option 121
to have the VMG push static routes to clients.
Sent Options
option 60
Select this and enter the device identity you want the VMG to add in the DHCP discovery
packets that go to the DHCP server.
Vendor ID
Enter the Vendor Class Identifier, such as the type of the hardware or firmware.
option 61
Select this and enter any string that identifies the device.
IAID
Enter the Identity Association Identifier (IAID) of the device, for example, the WAN connection
index number.
DUID
Enter the hardware type, a time value and the MAC address of the device.
option 125
Select this to have the VMG automatically generate and add vendor specific parameters in the
DHCP discovery packets that go to the DHCP server.
IPv6 Address (This is available only when you select
IPv4 IPv6 DualStack
or
IPv6 Only
in the
IPv4/IPv6 Mode
field.)
Obtain an IPv6
Address
Automatically
Select
Obtain an IPv6 Address Automatically
if you want to have the VMG use the IPv6 prefix
from the connected router’s Router Advertisement (RA) to generate an IPv6 address.
Static IPv6
Address
Select
Static IPv6 Address
if you have a fixed IPv6 address assigned by your ISP. When you select
this, the following fields appear.
IPv6 Address Enter an IPv6 IP address that your ISP gave to you for this WAN interface.
Prefix Length Enter the address prefix length to specify how many most significant bits in an IPv6 address
compose the network address.
Table 8 Network Setting > Broadband > Add New WAN Interface/Edit (Routing Mode) (continued)
LABEL
DESCRIPTION
