Routing > Loopback Interface
Routing
RM GUI HiSecOS EAGLE20/30
Release
3.0
09/2015
357
Routing > Loopback Interface
8.22 Loopback Interface
A loopback interface is a virtual network interface without reference to a
physical port. Loopback interfaces are constantly available while the device
is in operation.
The device offers the possibility to create router interfaces on the basis of
loopback interfaces. Using such a router interface, the device is always
available, even during periods of inactivity of individual ports.
Up to 8 loopback interfaces can be set up in the device.
Table
Parameters Meaning
Index Displays the number that uniquely identifies the loopback interface.
Port Displays the name of the loopback interface.
IP Address Specifies the IP address for the loopback interface.
Possible values:
Valid IPv4 address (default setting:
0.0.0.0
)
Subnet Mask Specifies the network mask for the loopback interface.
Possible values:
Valid IPv4 netmask (default setting:
0.0.0.0
)
If you intend to specify the loopback interface as the router ID, set the
value of
255.255.255.254
. As a result, exactly 1 host is allowed in the
subnet of the loopback interface.
Active Displays whether the loopback interface is active or inactive.
Possible values:
unmarked
The loopback interface is inactive.
marked
(default setting)
The loopback interface is active.
When sending SNMP traps, the device uses the IP address of the first
loopback interface as the sender.
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