
Restrict a reception of packets sent to the machine depending on the source address. This function also restricts sending depending on the destination address.
In the administrator mode, select [Network] - [TCP/IP Setting] - [Packet Filtering] - [Create], then configure the following settings.
| Settings | Description | 
|---|---|
| [Address Type] | Select the address type for the target packet. | 
| [Start Address] | Specify the range of addresses to be filtered. 
 
 
 | 
| [Finish Address] | When you select IPv4 in [Address Type], specify the ending address of the IPv4 address range to be filtered. If you skip [Finish Address], only the address specified in [Start Address] is targeted for filtering. Format: "*.*.*.*" "*" must be specified between 0 and 255. When you specify the prefix length of the IPv4 address in [Start Address], you cannot specify the ending address. | 
| [Receive/Send] | Select the communication direction of the target packet. 
 
 If you select [MAC Address] in [Address Type], you cannot set to [Send]. | 
| [Allow/Denied] | Select whether to allow or reject a communication of the target packet. | 
In the administrator mode, select [Network] - [TCP/IP Setting] - [Packet Filtering], then configure the following settings.
| Settings | Description | 
|---|---|
| [TX/RX address out of range] | Select whether to allow sending or receiving a packet to which the registered filter is not applied. [Allow] is specified by default. | 
Click [Network] - [TCP/IP Setting] - [Filtering Type], select [Packet Filtering], then click [OK].

Note that this machine cannot be connected using Web Connection from your computer if sending or receiving is not allowed for your computer’s address.
Export packet filtering settings to a file.
This function is available when you want to edit filter settings on a computer.
In the administrator mode, select [Network] - [TCP/IP Setting] - [Packet Filtering] - [Export], click [OK].
Click [Download].
This starts downloading of the configuration file.
Import packet filtering settings from a file.
This option is available to edit filter settings exported from the machine on the computer before importing them.
In the administrator mode, select [Network] - [TCP/IP Setting] - [Packet Filtering] - [Import], click [Browse], then select the configuration file for filter settings.
Click [OK] in the import window.
The import result is displayed.