DEVICE ADMINISTRATION
66
MultiConnect
®
rCell 100 MTR-LTE User Guide
Field
Description
Enabled
Enables SSH redirect which automatically redirects users
trying to access the device via SSH.
Port
The port on which the device listens for SSH requests.
Via LAN/Ethernet
If checked, the device listens and responds to SSH
requests from the LAN.
Via WAN/Cellular
If checked, the device listens and respond to SSH
requests from the WAN.
ICMP
Internet Control Message Protocol (IMCP) is used by devices to send error messages such as that a requested
service is not available or a host or device could not be reached. ICMP can also relay query messages.
Field
Description
Enabled
Enables ICMP responses.
Respond to LAN/Via Ethernet
If checked, the device will respond to ICMP traffic from
the LAN, such as ping requests.
Respond to WAN/Via Cellular
If checked, the device will respond to ICMP traffic from
the WAN, such as ping requests. This increases
susceptibility to malicious activity.
Configuring IP Defense
You can configure your router to slow malicious actions against it.
Denial of Service (DOS) Prevention
To mitigate the effects of a denial of service attack:
1.
Go to
Administration
>
Access Configuration
.
2.
Check
Enabled
to enable the DoS prevention.
3.
In the
Per Minute
field, type the average number of pings per minute. This is the number of new
connections per minute until burst points are consumed. For example, if 60 new connections are received
in a minute, decrement one burst point. If no more burst points occur, drop the packet.
4.
In the
Burst
field, type the allowed burst for traffic spikes. A burst occurs when the
Per Minute
limit is
reached. On a period where the
Per Minute
limit is not reached, one burst point is regained, up to the
maximum.
5.
Select
Submit
to save changes.
6.
To save your changes, click
Save & Restart
.
Ping limit
This engages a set of rules at the firewall that aims to prevent Ping Flood attacks by limiting the number of ICMP
requests to the router. This does not apply if
ICMP
is disabled. To mitigate the effects of a ping DoS on your router:
1.
Check
Enabled
to enable the Ping Limit feature.
