[Bilancino]

E' normale........anche io ho i pacchetti bloccati non ci faccio più caso......in base alle regole che il firewall crea di default blocca dei pacchetti.

Es:

ICMP (Internet Control Message Protocol) transfers control messages. There are several types of these messages, eg. information about availability of a remote computer, routing request or reply request (used in PING command).

UDP (User Datagram Protocol) is a so-called non-connected protocol, that means it does not create a channel – all data is transferred via individual messages (called datagrams). UDP does not ensure safe and reliable data delivery as datagrams can be lost during the transfer. In comparison to the TCP protocol, UDP is far less demanding on resources (there is no establishing and ending of connections, acknowledging of data, etc.). UDP protocol is used for DNS requests, transfers of sound or video data, etc.

E' abbastanza chiaro anche se è inglese.

Ciao