With this window you can build a filter used in the capture engine session.
Filters list: the filter which belongs to this list can be a MAC filter or an IP filter. The description specify which is the captured traffic.
MAC/IP folder: you can build a packets filter based on the MAC/IP addresses; the text in the edit box 'Direction' specifies which direction (source to destination, ...) the filter refers to. Remember that a MAC address is composed by six hexadecimal numbers (interval: 00 - FF) and that an IP address is composed by four decimal numbers (interval: 0 - 255)..
Insert: it inserts a new filter in the list (=the filter composed with the selected folder),
Remove: it removes the selected filter from the list.
Update: it replace the selected filter with new one (=the filter composed with the selected folder).
Edit box Direction: it has the following voices:
SRC->DST : you have to insert the source address and the destination address.
SRC->... : you have to insert only the source address; so the filter includes all the packets which leave the host with specified source address.
...->DST : you have to insert only the destination address; the filter includes all the packets forwarded to the host with the specified destination address.
HOST<->... : you have to insert only the host address; the filter includes the packets which leave the specified host and also the packets forwarded to the specified host.
HOST1<->HOST2 : you have to specify two addresses which identify host1 and host2 (at the MAC or IP level); the filter includes the packets forwarded (at the MAC or IP level) from host1 to host2 and vice versa.