Operation Manual

Operating modes and functions

ELSA LANCOM Wireless

English

the router, if the caller is not identified by means of CLI. On the other hand, the caller

incurs no costs if identification of the caller's number is possible and is accepted.

If the router is requested to call back, the Fast Callback procedure (patent pending) can

be used with many other parties. This speeds up the callback procedure considerably.

The hiding place – IP masquerading (NAT, PAT)

But this provokes objections from the network manager responsible for the security of

data on the company's network: Every workstation computer on the WWW? Surely this

means that anyone can get in from outside? –

Not true!

IP masquerading provides a hiding place for every computer while connected with the

Internet. Only the router module of the unit and its IP address are visible on the Internet.

The computers in the LAN then use the router as a gateway so that they themselves

cannot be detected. To do this, the router separates Internet and intranet, as if by a wall.

Therefore, IP masquerading is also called a “firewall function”.

For further information, see the 'IP Routing: IP masquerading' section.

Call charge management

The capability of the router to automatically establish connections to all required remote

stations and close them again when no longer required provides users with extremely

convenient access to the Internet, for example. However, quite substantial costs may be

incurred by data transfer over paid lines if the router is not configured properly (e.g. in

the filter configuration) or by excessive use of the communications opportunities (e.g.

extended surfing in the Internet).

Time-dependent Connection control

The telephone charges can be controlled by limiting the maximum connection time. This

requires setting up a time budget for a specified period. In the router's default state, for

example, connections may only be established for a maximum of 210 minutes per week.

If budget limit is reached, all open router connections that the router itself has

established will be automatically terminated. The budgets will not be reset to permit the

establishment of connections until the current period has elapsed. Needless to say, the

administrator can reset the budgets at any time if required!

The charge and time monitoring of the router functions can be disabled by entering a

budget of 0 units or 0 minutes.