Operation Manual

Table Of Contents
Chapter 6 Broadband
VMG4825-B10A User’s Guide
70
Select Obtain DNS Info Automically if you want the VMG to use the DNS server
addresses assigned by your ISP.
Select Use Following Static DNS Address if you want the VMG to use the DNS server
addresses you configure manually.
Primary DNS
Server
Enter the first DNS server address assigned by the ISP.
Secondary DNS
Server
Enter the second DNS server address assigned by the ISP.
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 Dual Stack Lite on
page 64 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. See
IPv6 Rapid Deployment on page 63 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 servers 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.
Table 8 Network Setting > Broadband > Add New WAN Interface/Edit (Routing Mode) (continued)
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