Getnet Router GR-524WA User Manual
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73 5.2.7. Firewall Firewall contains several features that are used to deny or allow traffic from passing through the router. 5.2.7.1. IP/Port Filtering The IP/Port filtering feature allows you to deny/allow specific services or applications in the forwarding path.
74 Parameter Description Outgoing Default Action Specify the default action on the LAN to WAN (Traffic to Internet) forwarding path. You can choose ‘Allow’ if you allow the IP Addresses listed in the following table to connect to the Internet; choose ‘Deny’ if you deny the IP Addressed listed in the following table to connect to the Internet. Incoming Default Action Specify the default action on the WAN to LAN (Traffic from Internet) forwarding path. You can choose ‘Allow’ if you allow the IP Addresses listed in the following table from connecting to the Internet; choose ‘Deny’ if you deny the IP Addressed listed in the following table from connecting to the Internet. Direction Select the traffic forwarding direction: outgoing or incoming. Protocol There are 3 options available: TCP, UDP and ICMP. Rule Action Deny or allow traffic when matching this rule.
75 Source IP Address Enter the start IP Address which will be monitored. Subnet Mask Enter the Subnet Mask based on the Source IP Address. Port LAN users use port number to distinguish one network application over another such as 21 is for FTP service. The port number range is from 0 to 65535. It is recommended that this option be configured by an advanced user. Destination IP Address Enter the destination IP Address which will be monitored. Subnet Mask Enter the Subnet Mask based on the Destination IP Address. Port This is the port or port ranges that define the application. Current Filter Table If you want to remove some IP/Port filter settings from the Current Filter Table, select the items you want to remove in the list and then click Delete Selected. If you want remove all the items from the table, just click Delete All button. When you finish, click ‘Apply Changes’. You’ll see the following message displayed on web browser: Press ‘Continue’ to save the settings made and back to web management interface; press ‘Apply’ to save the settings made and restart the router so the settings will take effect after it reboots. 5.2.7.2. MAC Filtering
76 The MAC filtering feature allows you to define rules to allow or deny frames through the router based on source MAC address, destination MAC address, and traffic direction. Parameter Description Outgoing Default Action Specify the default action on the LAN to WAN (Traffic to Internet) forwarding path. You can choose ‘Allow’ if you allow the IP Addresses listed in the following table from connecting to the Internet; choose ‘Deny’ if you deny the IP Addressed listed in the following table from connecting to the Internet. Incoming Default Action Specify the default action on the WAN to LAN (Traffic from Internet) forwarding path.沒有deny and allow說明 You can choose ‘Allow’ if you allow the IP Addresses listed in the following table from connecting to the Internet; choose ‘Deny’ if you deny the IP Addressed listed in the following table from connecting to the Internet.
77 Direction Traffic bridging/forwarding direction: outgoing or incoming. Rule Action Deny or allow traffic when matching this rule. Source MAC Address The source MAC address. It must be 12-digit hexadecimal format, for example: “00-d0-59-c6-12-43”. Destination MAC Address The destination MAC address. It must be 12-digit hexadecimal format, for example: “00-d0-59-c6-12-50”. Current Filter Table If you want to remove some filter rules from the Current Filter Table, select the MAC Address you want to remove in the table and then click Delete Selected. If you want remove all settings from the table, just click Delete All button. When you finish, click ‘Apply Changes’. You’ll see the following message displayed on web browser: Press ‘Continue’ to save the settings made and back to web management interface; press ‘Apply’ to save the settings made and restart the router so the settings will take effect after it reboots.
78 5.2.7.3. URL Blocking This page is used to block some URL addresses or keywords. Parameter Description URL Blocking Enable or disable the URL blocking function. FQDN Enter FQDN which you want to block. A FQDN is a complete DNS name. For example, “www.yahoo.com”. URL Blocking Table The FQDN settings will be listed in the table. If you want to delete some FQDN settings from the table, please select the settings and click “Delete Selected”. If you want remove all settings from the table, just click Delete All button.
79 Keyword Enter the keyword of the URL Address that you want to filter. Keyword Filtering Table The keyword settings will be listed in the table. If you want to delete some keyword settings from the table, please select the settings and click “Delete Selected”. If you want remove all settings from the table, just click Delete All button. When you finish, click ‘Apply Changes’. You’ll see the following message displayed on web browser: Press ‘Continue’ to save the settings made and back to web management interface; press ‘Apply’ to save the settings made and restart the router so the settings will take effect after it reboots. 5.2.7.4. Domain Blocking The firewall includes the ability to block access to specific domain based on string matches. For example, if the URL of Taiwan Yahoo web site is “tw.yahoo.com” and you enter “yahoo.com”, the firewall will block all the DNS queries with “yahoo.com” string. So the Host will be blocked to access all the URLs belong to “yahoo.com” domain. That means you can protect your computer, your house, your office and anything else that uses DNS from being able to service domains that you don’t want to load.
80 Parameter Description Domain Blocking Check this item to enable the Domain Blocking feature. Domain The blocked domain. If the URL of Taiwan Yahoo web site is tw.yahoo.com, the domain can be yahoo.com. Delete Selected/All If you want to delete a specific Domain Block entry, check the ‘select’ box of the Domain Block you want to delete, then click ‘Delete Selected’ button. If you want remove all settings from the table, just click Delete All button. 5.2.7.5. Routing Configuration The page enables you to define specific route for your Internet and network datas. Most users do not need to define routes. On a typical small home or office LAN, the existing routes that set up the default gateways for your LAN hosts and for the router provide the most appropriate path for all your Internet traffic. You may need to define routes if your home setup includes two or more networks or subnets, if you connect to two or more ISP services, or if you connect to a remote corporate LAN.
81 Parameter Description Enable Check to enable the selected route or route to be added. Destination The destination can be specified as the IP address of a subnet or a specific host in the subnet. It can also be specified as all zeros to indicate that this route should be used for all destinations for which no other route is defined (this is the route that creates the default gateway). Subnet Mask The network mask of the destination subnet. The default gateway uses a mask of 0.0.0.0. Next Hop The IP address of the next hop through which traffic will flow towards the destination subnet. Metric Defines the number of hops between network nodes that data packets travel. The default value is 0, which means that the subnet is directly one hop away on the local LAN network. Interface The WAN interface to which a static routing subnet is to
82 be applied. Add Route Add a user-defined destination route. Show Routes Click this button to view the router’s routing table. Static Route Table Click “Update” to update the selected destination route on the “Static Route Table”. Click “Delete Selected” to delete a selected destination route on the Static Route Table. When you finish, click ‘Apply Changes’. You’ll see the following message displayed on web browser: Press ‘Continue’ to save the settings made and back to web management interface; press ‘Apply’ to save the settings made and restart the router so the settings will take effect after it reboots.