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Table 22 Network > WAN > Internet Connection: IPoE Encapsulation (continued)
LABEL
DESCRIPTION
Static IP
Select this option If the ISP assigned a fixed IP address.
IP Address
Enter your WAN IP address in this field if you selected Static IP Address.
IP Subnet Mask
Enter the Subnet Mask in this field.
Gateway
Enter a gateway IP address (if your ISP gave you one) in this field.
MTU Size
Enter the MTU (Maximum Transmission Unit) size for each packet. If a larger packet arrives,
the NBG6818 divides it into smaller fragments.
DNS Server
First DNS Server
Select User-Defined if you have the IP address of a DNS server. Enter the DNS server's IP
address in the field to the right.
Second DNS Server
Select None if you do not want to configure DNS servers. If you do not configure a DNS
Third DNS Server
server, you must know the IP address of a computer in order to access it.
WAN MAC Address
Once the WAN MAC address is successfully configured, the address will be copied to the configuration file. It will
not change unless you change the setting or upload a different configuration file.
Factory Default
Select this option to have the WAN interface use the factory assigned default MAC address.
By default, the NBG6818 uses the factory assigned MAC address to identify itself.
Clone My
Select this option to have the WAN interface use a different MAC address by cloning the
Computer's MAC
MAC address of another device or computer. Enter the IP address of the device or
Address
computer whose MAC you are cloning.
Set WAN MAC
Select this option to have the WAN interface use a manually specified MAC address. Enter
Address
the MAC address in the fields.
LAN & WAN Subnet Conflict
Automatically
Select this option to have the NBG6818 change its LAN IP address to 10.0.0.1 or
change the LAN IP
192.168.123.1 accordingly when the NBG6818 gets a dynamic WAN IP address in the same
subnet as the LAN IP address. See
The NAT, DHCP server and firewall functions on the NBG6818 are still available in this mode.
IPv6 Address
This section is NOT available when you select IPv4 Only in the IPv4/IPv6 field.
Automatic IP (DHCP)
Select this option if you want to obtain an IPv6 address from a DHCPv6 server.
•
•
Static IP Address
Select this option if you have a fixed IPv6 address assigned by your ISP.
IPv6 Address
Enter the IPv6 address assigned by your ISP.
Prefix length
Enter the address prefix length to specify how many most significant bits in an IPv6 address
compose the network address.
Gateway
Enter the IPv6 address of the next-hop gateway. The gateway helps forward packets to
their destinations.
Link Local Only
Select this option to use the link-local address which uniquely identifies a device on the
local network (the LAN).
IPv6 DNS Server
This section is NOT available when you select IPv4 Only in the IPv4/IPv6 field.
Chapter 9 WAN
Select DUID-LL (Default) to have the NBG6818 use DUID-LL (DUID Based on Link-layer
Address) for identification when exchanging DHCPv6 messages.
Select DUID-LLT to have the NBG6818 use DUID-LLT (DUID Based on Link-layer Address
Plus Time) for identification when exchanging DHCPv6 messages.
NBG6818 User's Guide
81
Section 9.3.1 on page 78
for more information.
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