VIP Enterprise Gateway Validation Server delegation server description and use
When migrating from a legacy authentication solution to the VIP Service, the Validation Server allows authentication requests to be delegated to handle authentication requests.
You can forward validation requests to a delegated server when a validation server cannot successfully authenticate a request. If you specify a delegation server, validation requests are sent to the delegate server under the following circumstances:
– The user is not in the User Store.
– The user does not exist in the VIP Authentication Service (VIP Cloud).
– The user exists in the VIP Authentication Service but has no bound credentials.