ZyXEL Communications LTE2566-M634, Руководство пользователя, Страница: 90 / 151

Chapter 13 Firewall
LTE2566-M634 User’s Guide
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Figure 65 Configuration > Firewall > General
The following table describes the labels in this screen.
13.3 The ICMP Protection
If an outside user attempts to probe an unsupported port on LTE2566-M634, an ICMP response packet is
automatically returned. This allows the outside user to know LTE2566-M634 exists. Use this screen to
prevent the ICMP response packet from being sent. This keeps outsiders from discovering your LTE2566-
M634 when unsupported ports are probed.
Figure 66 Configuration > Firewall > ICMP > ICMP Protection
Table 36 Configuration > Firewall > General
LABEL DESCRIPTION
Firewall Setup Select Enable to activate the firewall. The LTE2566-M634 performs access control when the
firewall is activated.
Apply Click Apply to save the settings.