Lancom 1811 User Manual

Contents

Lancom 1811 User Manual Manual pdf 53 page image

LANCOM 1811 Wireless DSL – LANCOM 1821+ Wireless ADSL Chapter 6: Providing dial- in access53EN6 Providing dial-in accessYour LANCOM Router supports dial-in connections to permit individual com-puters full access to your network. This service is also known as RAS (RemoteAccess Service). In principle, the RAS access can be realized in two differentways: VPN: For a RAS access via VPN, the connection between the LAN and thedial-in PC is established over a specially secured connection through thepublic Internet. The router in the LAN requires VPN support, the dial-in PCan access to the Internet and the LANCOM VPN Client. ISDN: For a RAS access via ISDN, a direct connection between the LANand the dial-in PC is established over an ISDN dial-up connection. Therouter in the LAN requires an ISDN interface, the dial-up PC an ISDNadapter or an ISDN modem. The data transfer protocol is PPP. Therefore,the support of all usual devices and operating systems is ensured.A setup wizard handles the configuration of the dial-in connection in theusual convenient manner.Security aspectsYou must, of course, protect your LAN against unauthorized access. ALANCOM Router therefore offers a whole range of security mechanisms thatcan provide an outstanding level of protection: VPN: Network couplings via VPN transmit data by IPSec. The data areencrypted by AES, 3-DES, Blowfish or CAST encryption algorithms. ISDN: For network couplings via ISDN, the connection password, the che-cking of the ISDN number and the callback function ensure the security ofthe connection. The ISDN call back function cannot be configured using the wizard. Itcan only be set up in the expert configuration. For details, please seethe reference manual.6.1 Which information is required?The wizard will set up dial-up access for only one user. Please run the wizardagain for each additional user.