Consider predefining IP/gateway fix-up rules when you meet one of the following scenarios with gateway selections during a path calculation:
▪Gateway (interface) not found
▪Gateway of a device not correct
▪Specify gateways for all end systems in batch. For example, specify a gateway for all IPs in a network segment.
With the predefined Path IP and Gateway Fix-up Rules, when you input the source and destination to calculate a path, the system looks up the predefined gateways by matching both source and destination with that predefined in the fix-up rules.
1.Log in to the Domain Management page.
2.Select Operations > Advanced Tools > Path IP and Gateway Fix-up from the quick access toolbar.
4.Specify the original destination and source that you want to replace or assign gateways.
4.Specify the IP replacements or gateways, respectively for the source and destination.
5.Click OK to save the entry.
When you start a path calculation, the system will check if the destination and source match any fix-up rules. If yes, the system will use the fix-up gateway or IP replacements (if defined in the fix-up rule) to calculate the path.
For example, calculate a path from 172.24.32.109 to 172.24.32.10. The source IP is in the range of the subnet (172.24.32.0/24) defined in the above fix-up rule. Therefore, the fix-up rule will apply to the path calculation as follows: