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Ubiquiti Networks, Inc.
Chapter 3: AirOS™
AirRouter User Guide
Static routes should be specified in order for the packets
to pass-through the AirRouter if NAT is disabled in while
operating in Router mode.
Enable DHCP Server
Dynamic Host Configuration
Protocol (DHCP) Server assigns IP addresses to clients
which will associate to the wireless interface while the
AirRouter is operating in Access Point or Access Point
WDS mode and assigns IP addresses to clients which
will connect to the LAN interface while the AirRouter is
operating in Station or Station WDS mode.
•
Range Start/End
This range determines the IP
addresses given out by the DHCP server to client
devices on the internal network which use dynamic IP
configuration.
•
Netmask
This is used to define the device IP
classification for the chosen IP address range.
255.255.255.0 is a typical netmask value for Class C
networks, which support IP address range 192.0.0.x to
223.255.255.x. Class C network Netmask uses 24 bits to
identify the network (alternative notation “/24”) and 8
bits to identity the host.
•
Lease Time
The IP addresses given out by the DHCP
server will only be valid for the duration specified
by the lease time. Increasing the time ensures client
operation without interruption, but could introduce
potential conflicts. Lowering the lease time will avoid
potential address conflicts, but might cause more slight
interruptions to the client while it acquires a new IP
addresses from the DHCP server. The time is expressed
in seconds.
Enable DNS Proxy
The DNS Proxy forwards the Domain
Name System requests from the hosts which reside in the
internal network to the DNS server while the AirRouter is
in operating in Router mode. A valid Primary DNS Server
IP needs to be specified for DNS Proxy functionality. The
internal network interface IP of the AirRouter should be
specified as the DNS server in the host configuration in
order for the DNS Proxy to be able to get the DNS requests
and translate domain names to IP addresses afterwards.
Port Forwarding
Port forwarding allows specific ports of
the hosts residing in the internal network to be forwarded
to the external network. This is useful for number of
applications such as FTP servers, gaming, etc. where
different host systems need to be seen using a single
common IP address/port.
Port Forwarding rules can be set in the Port Forwarding
window, which is opened by enabling Port Forwarding
and then clicking Configure.
Port Forwarding entries can be specified by using the
following criteria:
•
Private IP
The IP of the host which is connected to the
internal network and needs to be accessible from the
external network.
•
Private Port
The TCP/UDP port of the application
running on the host which is connected to the internal
network. The specified port will be accessible from the
external network.
•
Type
The L3 protocol (IP) type which needs to be
forwarded from the internal network.
•
Public Port
The TCP/UDP port of the AirRouter which
will accept and forward the connections from the
external network to the host connected to the internal
network.
•
Comments
Enter a brief description of the port
forwarding functionality such as FTP server, Web server,
or game server.
•
Enabled
Enables or disables the effect of the particular
port forwarding entry. All the added firewall entries are
saved in the system configuration file, however only
the enabled port forwarding entries are used on the
AirRouter.
Save your port forwarding entries by clicking Save or
discard your changes by clicking Cancel.
Содержание AirRouter
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