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5 SETTINGS
2.
To configure the default route, enter a default gateway address. Once a default gateway address is configured, it must
be validated against condition 2 of the General Conditions to be Satisfied by Static Routes.
To delete a route:
1.
Replace the route destination with the default loopback address (127.0.0.1). When deleting a route, the mask and
gateway must be also brought back to default values.
2.
Delete the default route by replacing the default gateway with the default value 127.0.0.1.
GENERAL CONDITIONS TO BE SATISFIED BY STATIC ROUTES
The following rules must be adhered to for routing to work.
•
The route destination must not be a connected network.
•
The route gateway must be on a connected network. This rule applies to the gateway address of the default route as
well.
•
The route mask has IP mask format. In binary this is a set of contiguous bits of 1 from left to right, followed by one or
more contiguous bits of 0.
•
The route destination and mask must match. This means that the result of the "and" bitwise operation between the
RtDestination and RtMask must equal RtDestination.
Example of good configuration: RtDestination = 10.1.1.0; Rt Mask = 255.255.255.0
Example of bad configuration: RtDestination = 10.1.1.1; Rt Mask = 255.255.255.0
ROUTING BEHAVIOR COMPARED TO PREVIOUS RELEASES
Prior to release 7.10, the UR did not have an explicit manner of configuring routes. The only available route was the default
route configured as part of the network settings (port gateway IP address). This limited the ability to route to specific desti-
nations, particularly if these destinations were reachable through a different interface than the one on which the default
gateway was.
Starting with UR 7.10, up to six static network routes can be configured in addition to a default route. The default route con-
figuration was also moved from the network settings into the routing section.
The figure shows an example of topology that benefits from the addition of static routes.
In the figure, the UR connects through the following two Ethernet ports:
•
Port 1 (IP address 10.1.1.2) connects the UR to LAN 10.1.1.0/24 and to the Internet through Router1. Router 1 has an
interface on 10.1.1.0/24 and the IP address of this interface is 10.1.1.1.
•
Port 2 (IP address 10.1.2.2) connects the UR to LAN 10.1.2.0/24 and to the EnerVista software through Router 2.
Router 2 has an interface on 10.1.2.0/24 and the IP address of this interface is 10.1.2.1.
The configuration before release 7.10 was as follows:
GE Multilin
Figure 5–7: USING STATIC ROUTES
L90 Line Current Differential System
5.2 PRODUCT SETUP
5
5-27
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