Security Policies and Implementation Issues, 3rd Edition

LAN-to-WAN Domain Policies

The LAN-to-WAN domain refers to the technical infrastructure that connects an organization’s LAN to a wide area network (WAN). The main concern is controlling network traffic between the outside network, or the WAN, and the private network, or the LAN. The LAN-to-WAN domain denotes, for many organizations, its connection to the Internet. This connection represents significant risk. LAN-to-WAN security standards often focus on how to configure devices to maintain message and transaction integrity. Establishing secure point-to-point communications is an important part of the connectivity through the Internet. The Internet should never have a direct connection to the organization’s private network without the traffic ...