IPv4 subnetting causes routing tables to contain smaller and smaller subnets and increase memory and CPU requirements on backbone routers and even enterprise routers (for multi-homed companies).

[Part 1 of this article begins with an overview of IP addressing. Part 2 reviews the network/host boundary and examines the IPv4 address in detail. Part 3 looks at the IPv6 header and address, as well ...

Bitcricket is mostly an IPv4 subnet tool but has a few IPv6 features. The IPv6 tab shows many of the standard IPv6 address types and shows what address your system currently has and what block it ...

Subnetting in IPv4 The IP address space was originally classful. (Of course, they didn't know it was classful back then—it was just the IP address space). As such, it contained a number of special ...

IPv4 SUBNETTING BASICS. Before talking IPv4 subnetting, let me mention that there are two IP addressing schemes. IPv4 uses the dotted decimal notations we have been talking about, while IPv6 uses an ...

While IPv4 and IPv6 are very much alike to users and applications; "on the wire," the protocols are completely separate and don't interact. ... (the equivalent of the IPv4 subnet mask).

MORE IPv4 SUBNETTING BASICS. Consider an analog clock. Start the second hand at 12:00 and follow it clockwise around the dial. ... The new subnet mask is 11111111.11111111.11111111.10000000. Borrowing ...

HOSTS IN IPV4 ADDRESSES Maximum Maximum Bits Class Networks Hosts Net/Host A 127 16,777,214 7/24 B 16,383 65,534 14/16 C 2,097,151 254 21/8 Networks, Subnets and Hosts An IPv4 address is divided ...

In IPV4 networks, which are the networks on which our entire modern internet is based, subnetting is all about taking a network and breaking it down into a smaller network. This is actually quite ...

IPv4 (version 4) addresses are formatted in a "dotted-decimal octet" format like "192.168.0.3." Subnet masks have the same format, but are typically displayed as "255.255.255.0" on a local area ...