Instruction Manual

45
Chapter 5: Network Tab airOS
™
v5.5.4 User Guide
Ubiquiti Networks, Inc.
• Relay Relays DHCP messages between DHCP clients
and DHCP servers on different IP networks.
- DHCP Server IP Specify the IP address of the DHCP
server that should get the DHCP messages.
- Agent-ID Specify the identifier of the DHCP relay
agent.
UPnP Allows the use of Universal Plug-and-Play (UPnP)
for gaming, videos, chat, conferencing, and other
applications.
Add LAN Select an interface, and then click Add.
Management Network Settings
Management Interface (Available in Advanced view.)
Select the interface used for management.
Interfaces
(Available in Advanced view.) The Maximum Transmission
Unit (MTU) is the maximum packet size (in bytes) that a
network can transmit. You can configure a different MTU
for each of the interfaces.
Click the + button to display the Interfaces section.
Interface Displays the name of the interface.
MTU The default is 1500.
Action Click Edit to change the MTU. Then click Save to
apply your change.
IP Aliases
(Available in Advanced view.) You can configure IP
aliases for the local and external network interfaces for
management purposes. For example, you may need
multiple IP addresses (one private IP address and one
public IP address) for a single device. If a CPE uses PPPoE,
the CPE obtains a public PPPoE address, but the network
administrator assigns an internal IP alias to the device. This
way the network administrator can manage the device
internally without going through the PPPoE server.
Click the + button to display the IP Aliases section.
Enabled Enables the specific IP alias. All the added IP
aliases are saved in the system configuration file; however,
only the enabled IP aliases are active on the device.
Interface Select the appropriate interface.
IP Address The alternative IP address for the interface.
This can be used for routing or device management
purposes.
Netmask The network address space identifier for the IP
alias.
Comment You can enter a brief description of the
purpose for the IP alias.
Action You have the following options:
• Add Add an IP alias.
• Edit Make changes to an IP alias. Click Save to save your
changes.
• Del Delete an IP alias.
VLAN Network
(Available in Advanced view.) You can create multiple
Virtual Local Area Networks (VLANs). Click the + button to
display the VLAN Network section.
Enabled Enables the specific VLAN. All the added VLANs
are saved in the system configuration file; however, only
the enabled VLANs are active on the device.
Interface Select the appropriate interface.
VLAN ID The VLAN ID is a unique value assigned to
each VLAN at a single device; every VLAN ID represents a
different VLAN. The VLAN ID range is 2 to 4094.
Comment You can enter a brief description of the
purpose for the VLAN.