User manual ASUS SL1200 SL1200 QUICK INSTALLATION GUIDE (ENGLISH)

[. . . ] Products and corporate names appearing in this manual may or may not be registered trademarks or copyrights of their respective companies, and are used only for identification or explanation and to the owners' benefit, without intent to infringe. SPECIFICATIONS AND INFORMATION CONTAINED IN THIS MANUAL ARE FURNISHED FOR INFORMATIONAL USE ONLY, AND ARE SUBJECT TO CHANGE AT ANY TIME WITHOUT NOTICE, AND SHOULD NOT BE CONSTRUED AS A COMMITMENT BY ASUS. ASUS ASSUMES NO RESPONSIBILITY OR LIABILITY FOR ANY ERRORS OR INACCURACIES THAT MAY APPEAR IN THIS MANUAL, INCLUDING THE PRODUCTS AND SOFTWARE DESCRIBED IN IT. All Rights Reserved. ii Table of Contents 1 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] Select other numbers to indicate the priority you wish to assign to the rule. Source IP This option allows you to set the source network to which this rule should apply. Use the drop-down list to select one of the following options: Any IP Address IP Address Subnet This option allows you to apply this rule to all the computers in the source network, such as those on the Internet. This option allows you to specify an IP address on which this rule will be applied. Specify the appropriate network address 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 Mask Range Enter the appropriate IP address. This option allows you to include a range of IP addresses for applying this rule. The following fields become available for entry when this option is selected: Begin End IP Pool Enter the starting IP address of the range Enter the ending IP address of the range This option allows you to associate a pre-configured IP pool with this rule. The available IP pool can be selected from the IP pool drop-down list. Destination IP This option allows you to set the destination network to which this rule should apply. Use the dropdown list to select one of the following options: Any This option allows you to apply this rule to all the computers in the local network. 50 Internet Security Router User's Manual Chapter 9. Configuring Firewall/NAT Settings Field IP Address, Subnet, Range and IP Pool Description Select any of these options and enter details as described in the Source IP section above. Source Port This option allows you to set the source port to which this rule should apply. Use the drop-down list to select one of the following options: Any Single Port Number Range Select this option if you want this rule to apply to all applications with an arbitrary source port number. Inbound ACL configuration example 9. 3. 3 Add Inbound ACL Rules To add an inbound ACL rule, follow the instructions below: 1. Open the Outbound ACL Rule Configuration Page (see section 9. 3. 2 Access Inbound ACL Rule Configuration Page). Set desired action (Allow or Deny) from the "Action" drop-down list. 52 Internet Security Router User's Manual Chapter 9. Make changes to any or all of the following fields: source/destination IP, source/destination port, protocol, port mapping, time ranges, application filtering, log, and VPN. 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. The new ACL rule will then be displayed in the inbound access control list table at the bottom half of the Inbound ACL Configuration page. Figure 9. 8 illustrates how to create a rule to allow inbound HTTP (i. e. This rule allows inbound HTTP traffic to be directed to the host w/ IP address 192. 168. 1. 28. 9. 3. 4 Modify Inbound ACL Rules To modify an inbound ACL rule, follow the instructions below: 1. Open the Outbound ACL Rule Configuration Page (see section 9. 3. 2 Access Inbound ACL Rule Configuration Page). [. . . ] Transmission Control Protocol/Internet Protocol The basic protocols used on the Internet. TCP is responsible for dividing data up into packets for delivery and reassembling them at the destination, while IP is responsible for delivering the packets from source to destination. When TCP and IP are bundled with higher-level applications such as HTTP, FTP, Telnet, etc. , TCP/IP refers to this whole suite of protocols. An interactive, character-based program used to access a remote computer. [. . . ]