ELSA LANCOM Business 6000, Руководство пользователя

Страница: 55 / 174

|
Operating modes and functions
55
|
ELSA LANCOM Business 6000
|
EN
be permitted to use the internal functions. The circle of authorized users can
be expanded by inputting further entries. The filter entries can describe both
individual computers and whole networks.
The access list can be found in the ELSA LANconfig in the 'TCP/IP'
configuration section on the 'General' tab, or in the
/Setup/TCP-IP-
module/Access-list
menu.
6.2 Security for your LAN
You certainly would not like any outsider to have easy access to or to be able
to modify the data on your computer. The
ELSA LANCOM Business offers you
various ways of restricting access from outside:
Identification control
Access protection using name and password
Access protection via caller ID
Callback to defined call numbers
Data packet filtering – firewall
IP masquerading (also known as NAT/PAT)
6.3 Identification control
The “identifier” to be used for determining the caller can be specified in the
'Communication' configuration section under the 'Call accepting' tab, or
under the
/Setup/WAN-module/Protect
menu. You have a choice of
the following:
all calls are accepted from any remote station.
by name: Only calls from those remote stations entered in the name list
are accepted.
by number: Only calls from those remote stations entered in the number
list are accepted.
by name or number: Only calls from those remote stations entered in the
name list
or number list are accepted.
It is an obvious requirement for identification that the corresponding
information is also sent by the caller.