Transparent Identification of Users/content/support/library/web/v75/user_id/first.aspx
Websense Web Security solutions let you define custom filtering policies for different individuals or groups within your organization.
* In any environment, you can assign policies to individual computers (identified by IP address), or networks (groups of contiguous IP addresses).
* If your environment includes a supported directory service, you can configure Websense software to also filter directory clients: users, groups, and domains (organizational units).
To apply policies to users, groups, and other directory clients, Websense software must be able to identify the user making a request, given the originating IP address. Any of 4 methods can be used to identify users...
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