LANCOM 7111 VPN – LANCOM 8011 VPN Chapter 1: Introduction13EN Denial-of-Service ProtectionAttacks from the Internet can be break-in attempts as well as attacks withthe aim of blocking the accessibility and functionality of individualservices. Therefore a LANCOM Wireless DSL is equipped with appropriateprotective mechanisms, which recognize well-known hacker attacks andwhich guarantee the functionality. Quality-of-Service / Traffic managementThe generic term Quality-of-Service (brief: QoS) summarizes the functionsof the LANCOM which guarantee certain service qualities. The advantageis that the QoS functions can take place by means of the existing powerfulclassification methods of the Firewall (e.g. limitation of subnetworks,single workstations or certain services).Guaranteed minimum bandwidths give priority to enterprise critical appli-cations, VoIP PBX installations or certain user groups.More details about the function of the Stateful Inspection Firewall ofyour LANCOM router can be found in the reference manual on theLANCOM CD.1.3 What does a router do?The following sections describe the functionality of routers in general.The functions supported by your device are listed in the table ’Whatcan your LANCOM router do?’ →page 15.Routers connect LANs at different locations and individual PCs to form a WideArea Network (WAN). With the appropriate rights, any computer in this WANcan access other computers and services of the complete WAN (as with 'PC 1'accessing 'Server A' in the remote LAN in the diagram).routerLAN 1PC 1LAN 2WAN connectionserver Arouter