Packet Filter

Packet Filter is a tool that provides a real-time network packet filtering and analyzing. It allows to filter packets by all IP, ICMP, TCP, UDP, NETBIOS-SSN packet header fields.

Before using the tool you should select the Interface you want to use.

After the interface is selected the Packet Filter Dialog appears in the screen.

This dialog allows to select the packet header to use for filtering. You can enable ( disable ) the following options: IP, ICMP, UDP, TCP, NETBIOS-SSN, DATA, SIZE.

Clicking on the check IP shows the IP Header Parameters dialog.

This dialog allows to enable (disable ) and set values of IP header fields including Header Length, Precedence, Delay, Throughput, Reliability, Total Length, Identification, Flag DF, Flag MF, Time to Live, Protocol.

To add the source and destination addresses in the list click on the Add button.

To start filtering click on the Filter button.

Clicking on the check ICMP shows the ICMP Header Parameters dialog.

This dialog allows to enable ( disable ) and set values to ICMP header fields including ICMP Type and ICMP Code. To start filtering click on the Filter button.

Clicking on the check UDP shows the UDP Header Parameters dialog.

This dialog allows to enable ( disable ) and set values to UDP header fields including Source Port, Destination Port, Length in octets.

To start filtering click on the Filter button.

Clicking on the check TCP shows the TCP Header Parameters dialog.

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