A method and an apparatus for providing security in an intranet network are disclosed. For example, the method receives a packet at a customer edge router, and applies an inbound access control list by the customer edge router to the packet if the packet is destined to a server in a protected server group, wherein said protected server group identifies one or more servers within the intranet network to be protected. The method applies an outbound access control list by the customer edge router to the packet if the packet is from a server in the protected server group.