Issue
During the process of adding a user-created ECS database in the new version of the DMS console, a whitelist has been added but the message "unable to connect to database due to whitelist problem" is still prompted.
note: this problem only occurs in classic network-type ECS instances.
Solutions
- Log on to the ECS instance. For more information, see connection methods overview.
- Run the following command to confirm that no route exists for the
11.0.0.0/8
CIDR block:route -n
The system displays the following types, and the network route does not exist. - Run the following command to add a route entry.
route add -net 11.0.0.0/8 gw [$Gateway]
note :[$Gateway] is the Gateway of the ECS instance. You can obtain the value from the existing route entry.
- After the execution is complete, re-add the ECS-based user-created database in the new version DMS console.
References
Scope
- Data Management (DMS)