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Ubiquiti Networks, Inc.
Chapter 3: AirOS™
AirRouter User Guide
Newly IP Aliases can be saved by click the Save button
or discarded by clicking the Cancel button in the Aliases
configuration window.
Change MAC Address
When enabled, the MAC address
of the respective interface can be changed. This is
especially useful if your ISP only assigns one valid IP
address and it is associated to a specific MAC address;
usually used by Cable operators or some WISPs.
PPPoE
Point-to-Point Protocol over Ethernet (PPPoE) is a
virtual private and secure connection between two
systems which enables encapsulated data transport. It is
commonly used as the medium for subscribers to connect
to Internet Service Providers (typically DSL).
Select the IP Address option PPPoE to configure a PPPoE
tunnel in order to connect to an ISP. Only the external
network interface can be configured as a PPPoE client as
all the traffic will be sent via this tunnel. The IP address,
Default gateway IP and DNS server IP address will be
obtained from the PPPoE server after PPPoE connection is
established. The broadcast address is used for the PPPoE
server discovery and tunnel establishment.
A valid username and password are required for the PPPoE
connection:
PPPoE Username
Username to connect to the server
(must match the configured on the PPPoE server).
PPPoE Password
Password to connect to the server
(must match the configured on the PPPoE server).
Show
Check this box to display the PPPoE password
characters.
PPPoE MTU/MRU
The size (in bytes) of the Maximum
Transmission Unit (MTU) and Maximum Receive Unit
(MRU) used for data encapsulation while transferring
through the PPP tunnel; (MTU/MRU default value: 1492)
PPPoE Encryption
Enables the use of MPPE encryption.
The IP address of the PPP interface will be displayed on
the Main tab next to the PPP interface statistics if it is
obtained through the established PPPoE connection,
otherwise a Not Connected message will be displayed.
A PPPoE tunnel reconnection routine can be initiated
using the Reconnect button which is located in the Main
tab next to the PPP interface statistics.
Enable DMZ
The Demilitarized zone (DMZ) can be
enabled and used so that services such as Web Servers,
Proxy Servers, and E-mail Servers can still serve the local
network and are at the same time isolated from it for
additional security. DMZ is commonly used with NAT
functionality as an alternative to Port Forwarding but DMZ
opens all ports of the host network device to the external
network..
•
DMZ Management Port
Web Management Port for
the AirRouter (TCP/IP port 80 by default) will be used for
the host device if the DMZ Management Port option is
enabled.
•
DMZ IP
Enter the IP address of the internal network
device and the device will be completely exposed to the
external network.
Auto IP Aliasing
Automatically generates an IP Address
for the corresponding WLAN/LAN interface if enabled.
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.
Auto IP always starts with 169.254.X.Y while X and Y are
last 2 digits from the MAC address of the device (i.e. if the
MAC is 00:15:6D:A3:04:FB, Generated unique Auto IP will
be 169.254.4.251).
IP Aliases
IP aliases for the internal and external network
interface can be configured. IP Aliases can be specified
using the IP Aliases configuration window which is opened
when you click Configure.
•
IP
The alternative IP address for the LAN or WLAN
interface, which can be used for the routing or device
management purposes.
•
Netmask
The network address space identifier for the
particular IP Alias.
•
Comments
Field used for a brief description of the
purpose of the alias.
•
Enabled
Enables or disables the particular IP Alias. All
added IP Aliases are saved in the system configuration
file, however only the enabled IP Aliases are active on
the AirRouter.
Newly IP Aliases can be saved by click the Save button
or discarded by clicking the Cancel button in the Aliases
configuration window.
Summary of Contents for AirRouter
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