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6.2.7.3
Firewall options
To enable the Intrusion Prevention System functionality:
1
Select Firewall from the Security submenu on the left and then open the Options tab.
2
Go to the Firewall Options section of the Options page:
Item
Stealth Mode
SPI
Allow Ping from
WAN
Save
Undo
6.2.7.4
Edit Access Rules
When Enable is selected, the checkboxes and parameter text boxes on the Remote Administrator Host Definition section
become active. Select the WAN interfaces that you want to monitor.
NTC-400 Series
Figure 303 – Firewall Options
Notes
Checkbox, disabled
Stealth Mode turns off the router's response to port
by default.
scans from the WAN making it less susceptible to
discovery and attack.
Check Enable to activate the Stealth Mode
functionality.
Checkbox, enabled
SPI enables the router to check that every incoming
by default.
packet is valid and to record packet information such as
IP address, port address, ACK, SEQ, etc. while they pass
through the router.
Uncheck Enable to deactivate the SPI functionality.
Checkbox, disabled
When disabled, hosts on the WAN side cannot ping
by default.
the NTC-400.
Check Enable to allow any host on the WAN side to
ping this router.
Button
Click Save to save the setting.
Button
Click Undo to cancel the changes to settings.
Table 182 – Firewall Options
Description
© NetComm Wireless 2019
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