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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Chapter 9. Configuring Firewall/NAT Settings RX3141 User’s Manual 52 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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RX3141 User’s Manual Chapter 9. Configuring Firewall/NAT Settings 53 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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RX3141 User’s Manual Chapter 9. Configuring Firewall/NAT Settings 55 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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Chapter 9. Configuring Firewall/NAT Settings RX3141 User’s Manual 56 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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RX3141 User’s Manual Chapter 9. Configuring Firewall/NAT Settings 57 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 58 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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RX3141 User’s Manual Chapter 9. Configuring Firewall/NAT Settings 59 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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Chapter 9. Configuring Firewall/NAT Settings RX3141 User’s Manual 60 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...