146Table 32 - Network FirewallParameter DescriptionEnable Input Rules Indicates that the input rule application is enabled.Enable Output Rules Indicates that the output rule application is enabled.Input/Output To select whether the currently added rule is an input oroutput rule.Deny/Permit To select whether the current rule configuration is disabledor allowed;Protocol There are four types of filtering protocols: TCP | UDP |ICMP | IP.Src Port Range Filter port rangeSrc AddressSource address can be host address, network address, orall addresses 0.0.0.0; It can also be a network addresssimilar to *.*.*.0, such as: 192.168.1.0.Dst AddressThe destination address can be either the specific IPaddress or the full address 0.0.0.0; It can also be anetwork address similar to *.*.*.0, such as: 192.168.1.0.Src MaskIs the source address mask. When configured as255.255.255.255, it means that the host is specific. Whenset as 255.255.255.0, it means that a network segment isfiltered.Dst MaskIs the destination address mask. When configured as255.255.255.255, it means the specific host. When set as255.255.255.0, it means that a network segment isfiltered.After setting, click [Add] and a new item will be added in the firewall input rule, as shownin the figure below:Picture 145 - Firewall Input rule tableThen select and click the button [Apply].In this way, when the device is running: ping 192.168.1.118, the packet cannot be sent to192.168.1.118 because the output rule is forbidden. However, other IP of the ping
