Interfaces
Local Area Networks (LANs)
IX14 User Guide
120
About Local Area Networks (LANs)
A Local Area Network (LAN) connects network devices together in a logical Layer-2 network.
The following diagram shows a LAN connected to the
LAN
Ethernet device. Once the LAN is configured
and enabled, the devices connected to the network interfaces can communicate with each other, as
demonstrated by the
ping
commands.
Configure a LAN
Configuring a Local Area Network (LAN) involves configuring the following items:
Required configuration items
n
The interface type: either
Ethernet
,
IP Passthrough
, or
PPPoE
.
n
The firewall zone:
Internal
.
n
The network device that is used by the LAN.
n
The IPv4 address and subnet mask for the LAN. While it is not strictly necessary for a LAN to
have an IP address, if you want to send traffic from other networks to the LAN, you must
configure an IP address.
Note
By default,
LAN
is set to an IP address of 192.168.2.1 and uses the IP subnet of
192.168.2.0/24. If the
LAN
Ethernet device is being used by a WAN with the same IP subnet, you
should change the default IP address and subnet of LAN1.
Additional configuration items
n
Additional IPv4 configuration:
l
The metric for IPv4 routes associated with the LAN.
l
The relative weight for IPv4 routes associated with the LAN.
l
The IPv4 management priority of the LAN. The active interface with the highest
management priority will have its address reported as the preferred contact address for
central management and direct device access.
l
The IPv4 Maximum Transmission Unit (MTU) of the LAN.
l
When to use DNS: always, never, or only when this interface is the primary default route.
l
IPv4 DHCP server configuration. See
for more information.
n
IPv6 configuration:
l
The metric for IPv6 routes associated with the LAN.
l
The relative weight for IPv6 routes associated with the LAN.
l
The IPv6 management priority of the LAN. The active interface with the highest
management priority will have its address reported as the preferred contact address for
central management and direct device access.
l
The IPv6 Maximum Transmission Unit (MTU) of the LAN.
l
When to use DNS: always, never, or only when this interface is the primary default route.