196
Configuring Routing
EdgeSwitch
™
Administration Guide
Ubiquiti Networks, Inc.
Routing IP Interface Configuration Fields (Continued)
Field
Description
Admin Mode
The administrative mode of the interface. If set to
Disable
, the interface cannot forward traffic.
State
The state of the interface, which is either
Active
or
Inactive
. An interface is considered active if the link
is up, and the interface is in a forwarding state.
Link Speed Data Rate
The physical link data rate of the interface.
IP Address Configuration
Method
The method to use for configuring an IP address on the interface, which can be one of the following:
•
None
No address is to be configured.
•
Manual
The address is to be statically configured. When this option is selected you can specify
the IP address and subnet mask in the available fields.
•
DHCP
The interface will attempt to acquire an IP address from a network DHCP server.
IP Address
The IP address of the interface. This field can be configured only when the selected
IP Address
Configuration Method
is
Manual
. If the method is
DHCP
, the interface attempts to lease an IP address
from a DHCP server on the network, and the IP address appears in this field (read-only) after it is
acquired. If this field is blank, the
IP Address Configuration Method
might be
None
, or the method might
be
DHCP
and the interface is unable to lease an address.
Subnet Mask
The IP subnet mask for the interface (also known as the network mask or netmask). This field can be
configured only when the selected
IP Address Configuration Method
is
Manual
.
MAC Address
The burned-in physical address of the interface. The format is six two-digit hexadecimal numbers
separated by colons, for example 00:06:29:32:81:40.
IP MTU
The largest IP packet size the interface can transmit, in bytes. The IP Maximum Transmission Unit
(MTU) is the maximum frame size minus the length of the Layer-2 header.
Click
to reset this field.
Bandwidth
The configured bandwidth on this interface. This setting communicates the speed of the interface to
higher-level protocols.
Encapsulation Type
The link layer encapsulation type for packets transmitted from the interface:
Ethernet
or
SNAP
.
Forward Net Directed
Broadcasts
Determines how the interface handles network-directed broadcast packets. A network-directed
broadcast is a broadcast directed to a specific subnet. If this option is selected, network directed
broadcasts are forwarded. If this option is cleared, network directed broadcasts are dropped.
Proxy ARP
When this option is selected, proxy ARP is enabled, and the interface can respond to an ARP request for a
host other than itself. An interface can act as an ARP proxy if it is aware of the destination and can route
packets to the intended host, which is on a different subnet than the host that sent the ARP request.
Local Proxy ARP
When this option is selected, local proxy ARP is enabled, and the interface can respond to an ARP
request for a host other than itself. Unlike proxy ARP, local proxy ARP allows the interface to respond to
ARP requests for a host that is on the same subnet as the host that sent the ARP request. This feature is
useful when a host is not permitted to reply to an ARP request from another host in the same subnet,
for example when using the protected ports feature.
Destination Unreachables
When this option is selected, the interface is allowed to send ICMP Destination Unreachable message
to a host if the intended destination cannot be reached for some reason. If this option is clear, the
interface will not send ICMP Destination Unreachable messages to inform the host about the error in
reaching the intended destination.
ICMP Redirects
When this option is selected, the interface is allowed to send ICMP Redirect messages. The device
sends an ICMP Redirect message on an interface only if ICMP Redirects are enabled both globally
and on the interface. An ICMP Redirect message notifies a host when a better route to a particular
destination is available on the network segment.
Secondary IP Address
To add a secondary IP address on the interface, click
in the header row and enter the address in
the appropriate field in the
Secondary IP Address Configuration
window. You can add one or more
secondary IP addresses to an interface only if the interface already has a primary IP address. To remove
a configured secondary IP address, click the entry’s associated
button. To remove
all
configured
secondary IP addresses, click
in the header row.
Secondary Subnet Mask
The subnet mask associated with the secondary IP address. You configure this field in the
Secondary IP
Address Configuration
window.
Use the buttons to perform the following tasks:
• If you make any
changes to this page, click Submit
to apply the changes.
• Click
Refresh
to refresh the page with the most current data from the switch.
To retain the changes across the switch’s next power cycle, click
System
>
Configuration Storage
>
Save
.
