Providing Dial-In Access; Which Details Are Necessary - Lancom 1821n Wireless Manual

LANCOM 1811n Wireless – LANCOM 1821n Wireless
Chapter 6: Providing dial- in access

6 Providing dial-in access

Your LANCOM can be set up with dial-in access accounts enabling individual
computers to dial-in to your LAN and fully participate in the network for the
duration of the connection. This service is called RAS (Remote Access Service).
RAS access can be implemented in two basic ways:
Setting up dial-in access is carried out with the familiar convenience of a
Setup Wizard.
Security aspects
Of course your LAN has to be protected from unauthorized access.
For this reason, a LANCOM provides a range of security mechanisms that offer
an outstanding level of protection.

6.1

Which details are necessary?

The Wizard sets up an access account for just one user. For additional users,
launch the Wizard again.
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VPN: RAS access via VPN provides a highly secure Internet-based connec-
tion between the LAN and the dial-in computer. The router in the LAN
must support VPN; the dial-in computer needs any form of Internet access
and a VPN client.
ISDN: RAS access via ISDN provides a direct connection between the LAN
and the dial-in computer over an ISDN phone line. The router in the LAN
needs an ISDN interface. The dial-in computer needs an ISDN adapter or
an ISDN modem. The protocol of data transfer is PPP. This ensures that all
normal devices and operating systems are supported.
VPN: VPN-based connectivity relies on IPsec for transferring data. The
encryption methods employed are 3-DES, AES or Blowfish
ISDN: Security for ISDN-based connectivity relies on password protection,
a check of the ISDN number, and the call-back function.
The ISDN call-back function cannot be set up by Wizard, but in the
manual configuration only. Refer to the reference manual for informa-
tion on this.