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Darren ha scritto: Ma infatti funzionano in ogni caso.
Non riesco a capire cosa vuole sentire, o cercare di sapere "Pazzoinformatico", dato che gli abbiamo già detto piu di una volta che le collisioni ci sono e ci sono sempre state ma la rete funziona ugualmente. ::)

A gateway is a host that is connected to two or more physical networks simultaneously and is configured to switch packets between them.

Another reason for this notation is that IP addresses are split into a network number, which is contained in the leading octets, and a host number, which is the remainder. When applying to the NIC for IP addresses, you are not assigned an address for each single host you plan to use. Instead, you are given a network number and allowed to assign all valid IP addresses within this range to hosts on your network according to your preferences.
The size of the host part depends on the size of the network. To accommodate different needs, several classes of networks, defining different places to split IP addresses, have been defined. The class networks are described here:

Pazzoinformatico ha scritto: Ciao ragazzi.
Torno a rompervi un po' le gonadi^_^
Come vi ho già detto sto studiando il manuale per sistemisti Linux, non crediate che sia molto avanti, che sia ben chiaro, ma mi sorge una domanda:(Mi aiuto con una frase citata)

Another reason for this notation is that IP addresses are split into a network number, which is contained in the leading octets, and a host number, which is the remainder. When applying to the NIC for IP addresses, you are not assigned an address for each single host you plan to use. Instead, you are given a network number and allowed to assign all valid IP addresses within this range to hosts on your network according to your preferences.
The size of the host part depends on the size of the network. To accommodate different needs, several classes of networks, defining different places to split IP addresses, have been defined. The class networks are described here:

Qualcuno potrebbe gentilmente spiegare a me, povero ignorante, cosa sta cercando di dirmi? L'unica cosa che ho capito è praticamente che il NIC, l'autorità che assegna gli indirizzi IP ai router, dà un indirizzo solamente a quest'ultimi e non a tutte le macchine della rete interna, alle quali saremo noi a daglielo secondo le nostre preferenze. Ma quello che proprio non capisco è la parte degli ottetti e dei numeri all'interno dell'IP Address.

IP uses a table for this task that associates networks with the gateways by which they may be reached. A catch-all entry (the default route ) must generally be supplied too; this is the gateway associated with network 0.0.0.0 . All destination addresses match this route, since none of the 32 bits are required to match, and therefore packets to an unknown network are sent through the default route. On sophus , the table might look like this:

 
  Network    Netmask    Gateway    Interface
  149.76.1.0    255.255.255.0    -    fddi0
  149.76.2.0    255.255.255.0    149.76.1.2    fddi0
  149.76.3.0    255.255.255.0    149.76.1.3    fddi0
  149.76.4.0    255.255.255.0    -    eth0
  149.76.5.0    255.255.255.0    149.76.1.5    fddi0
  …    …    …    …
  0.0.0.0    0.0.0.0    149.76.1.2    fddi0

If you need to use a route to a network that sophus is directly connected to, you don't need a gateway; the gateway column here contains a hyphen.

The process for identifying whether a particular destination address matches a route is a mathematical operation. The process is quite simple, but it requires an understanding of binary arithmetic and logic: A route matches if the number of bits of the network address specified by the netmask (starting from the left-most bit, the high order bit of byte one of the address) match that same number of bits in the destination address.