Chapter 14 Firewall
LTE3311 Series User’s Guide
109
Figure 71 Security > Firewall > General l
The following table describes the labels in this screen.
14.3 Services Screen
If an outside user attempts to probe an unsupported port on your LTE3311, an ICMP response
packet is automatically returned. This allows the outside user to know the LTE3311 exists. Use this
screen to prevent the ICMP response packet from being sent. This keeps outsiders from discovering
your LTE3311 when unsupported ports are probed.
You can also use this screen to enable service blocking, enter/delete/modify the services you want
to block and the date/time you want to block them.
Click Security > Firewall > Services. The screen appears as shown next.
Table 48 Security > Firewall > General
LABEL DESCRIPTION
Enable Firewall Select this check box to activate the firewall. The LTE3311 performs access control and
protects against Denial of Service (DoS) attacks when the firewall is activated.
Apply Click Apply to save the settings.
Cancel Click Cancel to start configuring this screen again.
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