User's Manual

66xx/67xx Router Users Guide 76
LAN Local Area Network (LAN) Setup
The 6718 may be configured for IPv4 or IPv6.
IPv4 Configuration
You can configure the DSL Gateway IP address and Subnet Mask for the LAN interface to
correspond to your LAN’s IP Subnet.
Note: Changing the IP address here may cause your browser to be disconnected from the
modem. You will need to set your PC to the same subnet as the modem’s IP address to access
the gateway again.
• Group Name: Select a Group Name. The Group Name is created in the Interface
Grouping screen.
• IP Address—Specify an IP address for the selected Group. The default address of
192.168.1.1 is given to the first group. The default address of 192.168.2.1 is given to the
second group and so on for additional groups.
• Subnet Mask—Specify the netmask for the LAN interface.
• IGMP snooping—with IGMP snooping enabled, the gateway will snoop IGMP packets
and record the information so that it can send packets to the LAN ports. This avoids
flooding the LAN ports with multicast traffic.
Select Standard Mode or Blocking Mode.
• DHCP—If the selected group is associated with a routed WAN interface, the DHCP
option is displayed. The option is not displayed for groups associated with a bridge WAN
interface.
If you want the DHCP server to automatically assign IP addresses, enable the DHCP
server and enter the range of IP addresses that the DHCP server can assign to your
computers. Disable the DHCP server if you would like to manually assign IP addresses.