GE Multilin G30 Generator Protection System 5-335 SETTINGS 5.2 PRODUCT SETUP51. 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 inthe 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 mustbe 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 andgateway 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 ROUTESThe 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, followedby one or more contiguous bits of 0.• The route destination and mask must match. This can be verified by checking thatRtDestination and RtMask = RtDestinationExample of good configuration: RtDestination = 10.1.1.0; Rt Mask = 255.255.255.0Example of bad configuration: RtDestination = 10.1.1.1; Rt Mask = 255.255.255.0The 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 aswell. 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 operatorROUTING BEHAVIOR COMPARED TO PREVIOUS RELEASESPrior to release 7.10, the UR did not have an explicit manner of configuring routes. The only available route was the defaultroute 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 defaultgateway 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.
