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Asus Router RX3141 User Manual

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RX3141 User’s Manual  Chapter 9. Configuring Firewall/NAT Settings 
 51 
9.2.2.2 Configuring DoS Settings 
To configure DoS settings, follow the instructions below: 
1.  Open the Router Security configuration page as shown in Figure 9.1 by double clicking on 
Router 
Setup
 Î Security menu. 
2.  Check or uncheck individual check box for each type DoS attack. 
3. Click 
 to save the settings. 
 
 
Figure 9.1. Router Security Configuration Page  

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9.3  ACL Rule Configuration Parameters 
9.3.1 ACL Rule Configuration Parameters 
Table 9.3 describes the configuration parameters firewall inbound, outbound and self-access ACL rules. 
Table 9.3. ACL Rule Configuration Parameters 
Field Description 
ID 
Add New  Click on this option to add a new ACL rule. 
Rule Number  Select a rule from the drop-down list, to modify its settings. 
Mave 
This option allows you to set a priority for...

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Field Description 
Subnet  This option allows you to include all the computers that are connected in an 
IP subnet. When this option is selected, the following fields become 
available for entry: 
Address  Enter the appropriate IP address. 
Mask  Enter the corresponding subnet mask. 
Self (for self access 
rule only) Indicates the router itself. 
Destination IP 
This option allows you to set the destination network to which this...

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Chapter 9. Configuring Firewall/NAT Settings  RX3141 User’s Manual 
54 
Field Description 
arbitrary source port number. 
Single  This option allows you to apply this rule to an application with a specific 
source port number. 
Port Number  Enter the source port number 
Range  Select this option if you want this rule to apply to applications with this port 
range. The following fields become available for entry when this option is 
selected. 
Start Port  Enter the starting port number of the range 
End...

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9.4  Configuring Inbound ACL Rules 
By creating ACL rules in Inbound ACL configuration page as shown in Figure 9.2, you can control (allow or 
deny) incoming access to computers on your LAN. 
Options in this configuration page allow you to: 
f  Add a rule, and set parameters for it 
f  Modify an existing rule 
f Delete an existing rule 
f  View configured inbound ACL rules 
 
Figure 9.2. Inbound ACL Configuration Page 
9.4.1  Add...

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Figure 9.3 illustrates how to create a rule to allow inbound HTTP (i.e. web server) service. This rule allows 
inbound HTTP traffic to be directed to the host w/ IP address 192.168.1.28. Note that the newly added inbound 
ACL rule is displayed in the Existing Inbound ACL table shown in Figure 9.4. 
 
Figure 9.3. Inbound ACL Configuration Example 
 
9.4.2 Figure 9.4. Sample Inbound ACL List TableModify Inbound ACL Rules 
To modify an...

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9.4.4  Display Inbound ACL Rules 
To see existing inbound ACL rules, just open the Inbound ACL Rule configuration page by double clicking the 
Router Setup Î Inbound ACL menu. The existing inbound ACL rules are displayed at the bottom of the 
configuration page.  
9.5  Configuring Outbound ACL Rules 
By creating ACL rules in outbound ACL configuration page as shown in Figure 9.5, you can control (allow or 
deny) Internet or external...

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Chapter 9. Configuring Firewall/NAT Settings  RX3141 User’s Manual 
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4.  Assign a priority for this rule by selecting a number from the “Move to” drop-down list. Note that 
the number indicates the priority of the rule with 1 being the highest. Higher priority rules will be 
examined prior to the lower priority rules by the firewall. 
5.  Select an interface through which to send the packets. Options available are “AUTO”, “ppp0 
(unnumbered)”, “ppp1 (PPPoE 0)” and “ppp2 (PPPoE 1)”. Normally select...

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2.  Click on the  icon of the rule to be modified in the outbound ACL table or select the rule number 
from the “
ID” drop-down list. 
3.  Make desired changes to any or all of the following fields: action, source/destination IP, 
source/destination port, protocol, ICMP message type and log. Please see Table 9.3 for 
explanation of these fields. 
4.  Click on the 
 button to modify this ACL rule. The new settings for this ACL rule...

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Figure 9.8. Self-Access ACL Configuration Page 
9.6.1  Add a Self-Access Rule 
To add a Self-Access rule, follow the instructions below: 
1.  Open the Self-Access Rule configuration page, as shown in Figure 9.8, by double clicking the 
Router Setup Î Self Access ACL menu. 
2. Select “
Add New” from the “ID” drop-down list. 
3.  Set desired action (Allow or Deny) from the “
Action” drop-down list. 
4.  Assign a priority for this rule...
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