Function Overview
MLR 3G 2.0
Firewall (stateful firewall)
The MLR 3G 2.0 firewall enables the limitation of incoming and outgoing IP
connections. A flexible rule may be created for each connection and stored
user. If one of these firewall rules applies to a connection through the MLR
3G 2.0, this connection will be allowed, otherwise the connection is inhib-
ited. This will increase the security by not permitting unauthorized access
to the network behind the MLR 3G 2.0.
"Stateful firewall" means that the MLR 3G 2.0 will automatically adjust the
firewall for the data traffic that was initiated by authorised data packets.
This will allow connections also for protocols with special requirements,
e.g. FTP.
Configurable Ethernet switch
For each port at the switch of the MLR 3G 2.0, the transmission rate, the
transmission mode and the LED display for certain network events may be
set individually. The MLR 3G 2.0 detects the settings automatically when
configured with factory settings. The switch can be divided in up to four
VLANs.
Port mirroring at the Ethernet switch for analysis purposes
A port at the switch of the MLR 3G 2.0 can reproduce a copy of the data at
another network port of the switch. At these mirror ports, the transmitted
data can be read for analysis purposes (e.g. for intrusion detection sys-
tems, problem analysis of end terminals), without affecting the network
traffic.
E-Mail and SMS dispatch as well as SNMP trap triggering on different
events
The MLR 3G 2.0 can send an e-mail or SMS to any recipient on different
events or trigger an SNMP trap. A series of pre-define events are available
for this, like set-up of connections for example.
SMS receipt
The MLR 3G 2.0 can be configured for receiving SMS. Different commands
can be transmitted to the MLR 3G 2.0 with this, optionally also password-
protected. SMS that cannot be evaluated can be forwarded to sandbox and
evaluated there.
SNMP agent for processing SNMP requests
The MLR 3G 2.0 can respond to incoming SNMP requests (SNMP Get re-
quests) if the SNMP agent is enabled. All configuration parameters can be
read out with this.
Time synchronization via NTP
The MLR 3G 2.0 can synchronize its system time via the Network Time Pro-
tocol with an NTP server in the Internet. The system time will thus always
be current and the internal clock must not be set manually. In addition, the
time and the date can be set manually, if no NTP server is available.
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