Displaying The Core Routes - D-Link DFL-1660 User Manual

4.2.2. Static Routing
However, the option also exists for any physical interface to indicate that it should be used for
connection to the Internet. In the Web Interface this is an advanced setting in the Ethernet interface
properties called:
Automatically add a default route for this interface using the given default gateway.
When this option is selected, the appropriate all-nets route is automatically added to the main
routing table for the interface.
Core Routes
NetDefendOS automatically populates the active routing table with Core Routes. These routes are
present for the system to understand where to route traffic that is destined for the system itself.
There is one route added for each interface in the system. In other words, two interfaces named lan
and wan, and with IP addresses 192.168.0.10 and 193.55.66.77, respectively, will result in the
following routes:
Route #
1
2
When the system receives an IP packet whose destination address is one of the interface IPs, the
packet will be routed to the core interface. In other words, it is processed by NetDefendOS itself.
There is also a core route added for all multicast addresses:
Route #
1
To include the core routes when you display the active routing table, you have to specify an option
to the routing command.
Example 4.2. Displaying the Core Routes
This example illustrates how to display the core routes in the active routing table.
CLI
gw-world:/> routes -all
Flags Network
----- ------------------ -------------- --------------- --------------- ------
127.0.0.1
192.168.0.1
213.124.165.181
127.0.3.1
127.0.4.1
192.168.0.0/24
213.124.165.0/24
224.0.0.0/4
0.0.0.0/0
Web Interface
1. Select the Routes item in the Status dropdown menu in the menu bar
2. Check the Show all routes checkbox and click the Apply button
3. The main window will list the active routing table, including the core routes
Interface
core
core
Interface
core
Iface Gateway
core (Shared IP)
core (Iface IP)
core (Iface IP)
core (Iface IP)
core (Iface IP)
lan
wan
core (Iface IP)
wan 213.124.165.1
136
Destination
192.168.0.10
193.55.66.77
Destination
224.0.0.0/4
Local IP
Chapter 4. Routing
Gateway
Gateway
Metric
0
0
0
0
0
0
0
0
0