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| CIDR block | 127.0.0.0/8 |
| Range: Network - Broadcast | 127.0.0.0 - 127.255.255.255 |
| Netmask | 255.0.0.0 |
| Number of IP addresses in the block | 16,777,216 |
127.0.0.0 is in the 127.0.0.0/8 block which is assigned as the Internet host loopback address.
A datagram sent by a higher-level protocol to an addreess anywhere within this block
loops back inside the host. This is ordinarily implemented using only 127.0.0.1 for loopback.
Addresses within the entire 127.0.0.0/8 block do not legitimately appear on any network anywhere.
[ RFC1122, Section 3.2.1.3 ] |
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