On Monday 25 Aug 2008, Kenneth Gonsalves wrote: ....snip... > > Today it is CIDR. > > > > You could have an IP 192.168.0.1 but not an IP that ends in .0 > > like 192.168.1.0 since both 192.168.1.255 and 192.168.1.0 are used > > for broadcast. > > is this a convention or a rule?
It is a rule. In general, the IPv4_number/no_of_bits defines the network id. The remainder bits define the "no of hosts" possible in that network. All 0s in "host field" reserved for the network and all 1s in "host field" reserved for broadcast. For example a.b.c.d/24 defines a 24 bit mask, a.b.c.0 is the network id and a.b.c.255 is the broadcast. <http://www.tcpipguide.com/free/t_IPBasicAddressStructureandMainComponentsNetworkIDa.htm> -- Arun Khan _______________________________________________ To unsubscribe, email [EMAIL PROTECTED] with "unsubscribe <password> <address>" in the subject or body of the message. http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
