Ubiquiti Networks Rockeac - Manual (Page 21)

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Chapter 4: Network airOS®7 User Guide
Ubiquiti Networks, Inc.
- IP Address Enter the IP address of the device. This IP
will be used for device management purposes.
- Netmask Enter the netmask of the device. When the
netmask is expanded into its binary form, it provides
a mapping to define which portions of the IP address
range are used for the network and which portions
are used for host devices. The netmask defines the
address space of the device’s network segment. The
255.255.255.0 (or “/24”) netmask is commonly used on
many Class C IP networks.
- Gateway IP Enter the IP address of the gateway device.
Typically, this is the IP address of the host router, which
provides the point of connection to the Internet. This
can be a DSL modem, cable modem, or WISP gateway
router. The device directs data packets to the gateway if
the destination host is not within the local network.
Note: In Bridge mode, the gateway IP address
(used for management purposes only) should
be from the same address space (on the same
network segment) as the device.
- Primary DNS IP Enter the IP address of the primary
DNS (Domain Name System) server. This is used for
management purposes only.
- Secondary DNS IP Enter the IP address of the
secondary DNS server. This entry is optional and used
only if the primary DNS server is not responding. It is
used for management purposes only.
MTU (Available in Simple view.) Enter the desired MTU
value. The default is 1500.
STP (Available in Simple view.) Select this option to
enable the STP feature. Multiple interconnected bridges
create larger networks. Spanning Tree Protocol (STP)
eliminates loops from the topology while finding the
shortest path within a network.
If enabled, the device bridge communicates with other
network devices by sending and receiving Bridge Protocol
Data Units (BPDU). STP should be disabled (default
setting) when the device is the only bridge on the LAN
or when there are no loops in the topology, as there is no
need for the bridge to use STP in this case.
Management VLAN (Available in Simple view.) Select
this option to automatically create a management Virtual
Local Area Network (VLAN). If this option is enabled, the
device will not be accessible from other VLANs, including
tagged VLANs.
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VLAN ID Enter a unique VLAN ID from 2 to 4094.
Auto IP Aliasing Select this option to automatically
generate an IP address for the corresponding WLAN/LAN
interface. The generated IP address is a unique Class B IP
address from the 169.254.X.Y range (netmask 255.255.0.0),
which is intended for use within the same network
segment only. The Auto IP always starts with 169.254.X.Y,
with X and Y as the last two octets from the MAC address
of the device. For example, if the MAC is 00:15:6D:A3:04:FB,
then the generated unique Auto IP will be 169.254.4.251.
The Auto IP Aliasing setting can be useful because you
can still access and manage devices even if you lose,
misconfigure, or forget their IP addresses. Because an
Auto IP address is based on the last two octets of the MAC
address, you can determine the IP address of a device if
you know its MAC address.
Router Mode
Management Interface (Available in Advanced view.)
Select the interface used for management.
WAN Network Settings
(Available in Router mode only)
WAN Interface Select the interface used for connection
to the external network (Internet).
WAN IP Address The IP address of the WAN interface
connected to the external network. You can use this IP
address for routing and device management purposes.