Define Path IP and Gateway Fix-up
Consider predefining IP/gateway fix-up rules when you meet one of the following scenarios with gateway selections during a path calculation:
- Gateway (interface) is not found
- The gateway of a device is 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.
The following use flow is recommended for fixing up Path IP and Gateways:
Defining Path IP/Gateway Fix-Up Rules
- Log in to the Domain Management page.
- Click
, then select Path IP and Gateway Fix-up from Path & Application.
- Click Add. The sample below shows the gateway fix-up rule for a subnet.
- Specify the original destination and source you want to replace or assign gateways.
Tip: "*" indicates matching any IP.
Note: The operator between Source and Destination is AND. If you enter an exact IP address like "192.168.1.1" as the source and "*" as the destination, the system only matches the source without considering the destination input when selecting gateways in a path calculation.
- Specify the IP replacements or gateways for the source and destination.
Note: At least one replacement is required, and others can be left blank.
- Click OK to save the entry.
Viewing Matched Path IP and Gateway Fix-up Rules
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 subnet range (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:
