ZS3-2 management interface

Dear All;

Currently we configured ZS3-2 As Active / passive but i face an issue in configure the management interface for both nodes . at first when you configure the network for both management interfaces ; the system put a route in which the gateway is the same as the Management IP but this management IP is reached locally only not through routing.

so i create a route in the active node in which the Destination is "default" and gateway is router gateway and then the management IP is reachable through router.

regarding to the Passive node , does i need to do the same to be reachable or it will be reachable when failover done?