Operation Manual

Chapter 5 Broadband
SBG3300-N Series User’s Guide
50
PPPoE
Passthrough
This field is available when you select PPPoE encapsulation.
In addition to the Device’s built-in PPPoE client, you can enable PPPoE pass through to allow
up to ten hosts on the LAN to use PPPoE client software on their computers to connect to the
ISP via the Device. Each host can have a separate account and a public WAN IP address.
PPPoE pass through is an alternative to NAT for application where NAT is not appropriate.
Disable PPPoE pass through if you do not need to allow hosts on the LAN to use PPPoE client
software on their computers to connect to the ISP.
IP Address This is available only when you select IPv4 Only or IPv6/IPv4 DualStack in the IPv6/
IPv4 Mode field.
Obtain an IP
Address
Automatically
A static IP address is a fixed IP that your ISP gives you. A dynamic IP address is not fixed;
the ISP assigns you a different one each time you connect to the Internet. Select this if you
have a dynamic IP address.
Static IP
Address
Select this option if the ISP assigned a fixed IP address.
IP Address Enter the static IP address provided by your ISP.
Subnet
Mask
Enter the subnet mask provided by your ISP.
Gateway IP
Address
Enter the gateway IP address provided by your ISP.
Routing Feature This is available only when you select IPv4 Only or IPv6/IPv4 DualStack in the IPv6/
IPv4 Mode field.
NAT Enable Select this option to activate NAT on this connection.
FullFeature NAT
Enable
This option displays when you enable NAT on the connection. Select this to use NAT address
mapping with this connection.
NatSet When you enable full feature NAT on the connection, select the NAT address mapping set of
local IP addresses to map to this interface’s IP address. Configure NAT address mapping sets
in the NAT Address Mapping screens.
IGMP Proxy
Enable
Internet Group Multicast Protocol (IGMP) is a network-layer protocol used to establish
membership in a Multicast group - it is not used to carry user data.
Select this option to have the Device act as an IGMP proxy on this connection. This allows
the Device to get subscribing information and maintain a joined member list for each
multicast group. It can reduce multicast traffic significantly.
Apply as
Default
Gateway
Select this option to have the Device use the WAN interface of this connection as the system
default gateway.
DNS Server This is available only when you select IPv4 Only or IPv6/IPv4 DualStack in the IPv6/
IPv4 Mode field.
DNS Select Dynamic if you want the Device use the DNS server addresses assigned by your ISP.
Select Static if you want the Device use the DNS server addresses you configure manually.
DNS Server 1 Enter the first DNS server address assigned by the ISP.
DNS Server 2 Enter the second DNS server address assigned by the ISP.
IPv6 Address This is available only when you select IPv6/IPv4 DualStack or IPv6 Only in the IPv6/
IPv4 Mode field.
Table 7 Routing Mode (continued)
LABEL DESCRIPTION