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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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.

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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.

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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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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.

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