GE C60, Instruction Manual

Page: 169 / 682

GE Multilin C60 Breaker Protection System 5-33
5 SETTINGS 5.2 PRODUCT SETUP
5
Configure the network IP and subnet settings before configuring the routing settings.
ADDING AND DELETING STATIC ROUTES
Host routes are not supported at present.
The routing table configuration is available on the serial port and front panel. This is a deliberate decision, to avoid loss of
connectivity when remotely configuring the UR.
By default the value of the destination field is 127.0.0.1 for all static routes (1 to 6). This is equivalent to saying that the
static routes are not configured. When the destination address is 127.0.0.1, the mask and gateway must be also kept on
default values.
By default, the value of the route gateway address is 127.0.0.1. This means the default route is not configured.
To add a route:
1. Use any of the static network route entries numbered 1 to 6 to configure a static network route. Once a route destina-
tion is configured for any of the entries 1 to 6, that entry becomes a static route and it must meet all the rules listed in
the next section, General Conditions to be Satisfied by Static Routes.
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 are validated internally:
• The route mask has IP mask format. In binary this needs to be 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 can be verified by checking that
RtDestination and RtMask = 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
The following rules must be observed when you configure static routes:
• 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. This can be verified by checking that:
(RtGwy & Prt1Mask) == (Prt1IP & Prt1Mask) || (RtGwy & Prt2Mask) == (Prt2IP & Prt2Mask) || (RtGwy & Prt3Mask) ==
(Prt3IP & Prt3Mask)
where
& is the bitwise-AND operator
== is the equality operator
|| is the logical OR operator

IPV4 STATIC

NETWORK ROUTE 1
RT1 DESTINATION:
127.0.0.1
Range: Standard IPV4 address format
MESSAGE
RT1 NET MASK:
255.0.0.0
Range: Standard IPV4 subnet mask format
MESSAGE
RT1 GATEWAY:
127.0.0.1
Range: Standard IPV4 unicast address format