You are the network administrator for your company. The network consists of a single Active Directory domain. The network contains Windows Server 2003 file servers. The network also contains a Windows Server 2003 computer named Server1 that runs Routing and Remote Access and Internet Authentication Service (IAS). Server1 provides VPN access to the network for users’ home computers.
You suspect that an external unauthorized user is attempting to access the network through Server1. You want to log the details of access attempts by VPN users when they attempt to access the network. You want to compare the IP addresses of users’ home computers with the IP addresses used in the access attempts to verify that the users are authorized. You need to configure Server1 to log the details of access attempts by VPN users.
What should you do?

A.
Configure the system event log to Do not overwrite.

B.
In IAS, in Remote Access Logging, enable the Authentication requests setting.

C.
Configure the Remote Access server to Log all events.

D.
Create a custom remote access policy and configure it for Authentication-Type.