ZyXEL Communications MAX-306M1, User Manual

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Chapter 18 The Remote Management Screens
User’s Guide
211
18.7 Security
Click TOOLS > Remote Management > Security to access this screen. Use this
screen to control how your WiMAX Modem responds to other types of requests.
Figure 93 TOOLS > Remote Management > Security
The following table describes the labels in this screen.
Table 77 TOOLS > Remote Management > Security
LABEL DESCRIPTION
Respond to Ping
on Select the interface(s) on which the WiMAX Modem should respond to
incoming ping requests.
• Disable - the WiMAX Modem does not respond to any ping requests.
• LAN - the WiMAX Modem only responds to ping requests received
from the LAN.
• WAN - the WiMAX Modem only responds to ping requests received
from the WAN.
• LAN & WAN - the WiMAX Modem responds to ping requests
received from the LAN or the WAN.
Do not respond
to requests for
unauthorized
services Select this to prevent outsiders from discovering your WiMAX Modem by
sending requests to unsupported port numbers. If an outside user
attempts to probe an unsupported port on your WiMAX Modem, an
ICMP response packet is automatically returned. This allows the outside
user to know the WiMAX Modem exists. Your WiMAX Modem supports
anti-probing, which prevents the ICMP response packet from being
sent. This keeps outsiders from discovering your WiMAX Modem when
unsupported ports are probed.
If you clear this, your WiMAX Modem replies with an ICMP Port
Unreachable packet for a port probe on unused UDP ports and with a
TCP Reset packet for a port probe on unused TCP ports.
Apply Click to save your changes.
Reset Click to restore your previously saved settings.