IPv4 addresses are categorized into five classes: Class A, Class B, Class C, Class D, and Class E. Class A is designed for very large networks, Class B for medium-sized networks, and Class C for smaller networks. Class D is used for multicast groups, while Class E is reserved for experimental purposes. Each class has a specific range of leading bits that determines its network size and capacity.
The address space of IPV4 is limited to 4294967296 possible unique addresses.
To determine if an IPv4 packet is carrying an ICMPv4 packet, you can examine the packet's protocol field in the IPv4 header. The protocol field specifies the type of payload the IPv4 packet carries, and for ICMPv4, this field is set to 1. Additionally, you can analyze the packet's structure; ICMPv4 packets have a specific format beginning with a type field that indicates the kind of ICMP message being transmitted.
IPv4 Mechanisms
That's an iPv4 address. (4 bytes, 32 bits)
32 bits in a IPv4 address
32 bits (for IPv4), or 128 bits (for IPv6).32 bits (for IPv4), or 128 bits (for IPv6).32 bits (for IPv4), or 128 bits (for IPv6).32 bits (for IPv4), or 128 bits (for IPv6).
IPv4 was described in RFC 791 in September 1981.
IPV4 is a kind of IP Address.
Minimal bytes required in IPv4 header are 20 i.e. 20 bytes are mandatory. And total bytes in IPv4 header are 60.
While IPv6 is based on IPv4, it is superior. The main characteristic that shows its enhancement over IPv4 is that it processes faster.
There is no need to disable ipv4 to use ipv6.
Hosts with the same network portion of their IPv4 address.