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Page 76 / 127 Scroll up to view Page 71 - 75
300M Wireless N Router
RNX-N300RT
User Manual
4.9.1 Basic Security
Choose menu “
Security
→
Basic Security
”, you can configure the basic security in the
screen as shown in Figure 4-39.
Figure 4-39 Basic Security
¾
Firewall -
A firewall protects your network from the outside world. Here you can
enable or disable the Router’s firewall.
z
SPI Firewall -
SPI (Stateful Packet Inspection, also known as dynamic packet
filtering) helps to prevent cyber attacks by tracking more state per session. It
validates that the traffic passing through the session conforms to the protocol.
SPI Firewall is enabled by factory default. If you want all the computers on the
LAN exposed to the outside world, you can disable it.
¾
VPN -
VPN Passthrough must be enabled if you want to allow VPN tunnels using
IPSec, PPTP, or L2TP protocols to pass through the Router’s firewall.
z
PPTP Passthrough -
Point-to-Point Tunneling Protocol (PPTP) allows the
Point-to-Point Protocol (PPP) to be tunneled through an IP network. To allow
PPTP tunnels to pass through the Router, keep the default,
Enabled
.
z
L2TP Passthrough
-
Layer 2 Tunneling Protocol (L2TP) is the method used to
enable Point-to-Point sessions via the Internet on the Layer 2 level. To allow
L2TP tunnels to pass through the Router, keep the default,
Enabled
.
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Page 77 / 127
300M Wireless N Router
RNX-N300RT
User Manual
z
IPSec Passthrough
-
Internet Protocol Security (IPSec) is a suite of protocols
for ensuring private, secure communications over Internet Protocol (IP) networks,
through the use of cryptographic security services. To allow IPSec tunnels to
pass through the Router, keep the default,
Enabled
.
¾
ALG -
It is recommended to enable Application Layer Gateway (ALG) because ALG
allows customized Network Address Translation (NAT) traversal filters to be plugged
into the gateway to support address and port translation for certain application layer
"control/data" protocols such as FTP, TFTP, H323 etc.
z
FTP ALG -
To allow FTP clients and servers to transfer data across NAT, keep
the default
Enable
.
z
TFTP ALG -
To allow TFTP clients and servers to transfer data across NAT,
keep the default
Enable
.
z
H323 ALG -
To allow Microsoft NetMeeting clients to communicate across NAT,
keep the default
Enable
.
Click the
Save
button to save your settings.
4.9.2 Advanced Security
Choose menu “
Security
→
Advanced Security
”, you can protect the Router from being
attacked by TCP-SYN Flood, UDP Flood and ICMP-Flood in the screen as shown in
Figure 4-40.
-76-
Page 78 / 127
300M Wireless N Router
RNX-N300RT
User Manual
Figure 4-40
Advanced Security
¾
Packets Statistics Interval (5~60) -
The default value is 10. Select a value between
5 and 60 seconds from the drop-down list. The Packets Statistics Interval value
indicates the time section of the packets statistics. The result of the statistics is used
for analysis by SYN Flood, UDP Flood and ICMP-Flood.
¾
DoS protection -
Denial of Service protection. Check the Enable or Disable button
to enable or disable the DoS protection function. Only when it is enabled, will the
flood filters be enabled.
)
Note:
Dos Protection will take effect only when the
Traffic Statistics
in “
System Tool
→
Traffic Statistics
” is enabled.
¾
Enable ICMP-FLOOD Attack Filtering
-
Enable or Disable the ICMP-FLOOD
Attack Filtering.
¾
ICMP-FLOOD Packets Threshold (5~3600)
-
The default value is 50. Enter a value
between 5
~
3600. When the current ICMP-FLOOD Packets number is beyond the
set value, the Router will startup the blocking function immediately.
¾
Enable UDP-FLOOD Filtering
-
Enable or Disable the UDP-FLOOD Filtering.
-77-
Page 79 / 127
300M Wireless N Router
RNX-N300RT
User Manual
¾
UDP-FLOOD Packets Threshold (5~3600)
-
The default value is 500. Enter a value
between 5
~
3600. When the current UPD-FLOOD Packets number is beyond the set
value, the Router will startup the blocking function immediately.
¾
Enable TCP-SYN-FLOOD Attack Filtering
-
Enable or Disable the
TCP-SYN-FLOOD Attack Filtering.
¾
TCP-SYN-FLOOD Packets Threshold (5~3600)
-
The default value is 50. Enter a
value between 5
~
3600. When the current TCP-SYN-FLOOD Packets numbers is
beyond the set value, the Router will startup the blocking function immediately.
¾
Ignore Ping Packet From WAN Port
-
Enable or Disable Ignore Ping Packet From
WAN Port. The default setting is disabled. If enabled, the ping packet from the
Internet cannot access the Router.
¾
Forbid Ping Packet From LAN Port
-
Enable or Disable Forbid Ping Packet From
LAN Port. The default setting is disabled. If enabled, the ping packet from LAN cannot
access the Router. This function can be used to defend against some viruses.
Click the
Save
button to save the settings.
Click the
Blocked DoS Host List
button to display the DoS host table by blocking.
4.9.3 Local Management
Choose menu “
Security
→
Local Management
”, you can configure the management rule
in the screen as shown in Figure 4-41. The management feature allows you to deny
computers in LAN from accessing the Router.
Figure 4-41 Local Management
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Page 80 / 127
300M Wireless N Router
RNX-N300RT
User Manual
By default, the radio button “
All the PCs on the LAN are allowed to access the
Router's Web-Based Utility
” is checked. If you want to allow PCs with specific MAC
Addresses to access the Setup page of the Router's Web-Based Utility locally from inside
the network, check the radio button “
Only the PCs listed can browse the built-in web
pages to perform Administrator tasks
”, and then enter each MAC Address in a
separate field. The format for the MAC Address is XX-XX-XX-XX-XX-XX (X is any
hexadecimal digit). Only the PCs with MAC address listed can use the password to
browse the built-in web pages to perform Administrator tasks while all the others will be
blocked.
After click the
Add
button, your PC's MAC Address will be placed in the list above.
Click the
Save
button to save your settings.
)
Note:
If your PC is blocked but you want to access the Router again, use a pin to press and
hold the
Reset Button
(hole) on the back panel for about 5 seconds to reset the Router’s
factory defaults on the Router’s Web-Based Utility.
4.9.4 Remote Management
Choose menu “
Security
→
Remote Management
”, you can configure the Remote
Management function in the screen as shown in Figure 4-42. This feature allows you to
manage your Router from a remote location via the Internet.
Figure 4-42
Remote Management
¾
Web Management Port -
Web browser access normally uses the standard HTTP
service port 80. This Router's default remote management web port number is 80.
For greater security, you can change the remote management web port to a custom
port by entering that number in the box provided. Choose a number between 1 and
65534 but do not use the number of any common service port.
-79-

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