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  2. Subnet - Wikipedia

    en.wikipedia.org/wiki/Subnet

    In general, the number of available hosts on a subnet is 2 h −2, where h is the number of bits used for the host portion of the address. The number of available subnets is 2 n, where n is the number of bits used for the network portion of the address. There is an exception to this rule for 31-bit subnet masks, [11] which means the host ...

  3. Packet Tracer - Wikipedia

    en.wikipedia.org/wiki/Packet_Tracer

    Packet Tracer is a cross-platform visual simulation tool designed by Cisco Systems that allows users to create network topologies and imitate modern computer networks.The software allows users to simulate the configuration of Cisco routers and switches using a simulated command line interface.

  4. List of assigned /8 IPv4 address blocks - Wikipedia

    en.wikipedia.org/wiki/List_of_assigned_/8_IPv4...

    Some large / 8 blocks of IPv4 addresses, the former Class A network blocks, are assigned in whole to single organizations or related groups of organizations, either by the Internet Corporation for Assigned Names and Numbers (ICANN), through the Internet Assigned Numbers Authority (IANA), or a regional Internet registry.

  5. Private network - Wikipedia

    en.wikipedia.org/wiki/Private_network

    Download as PDF; Printable version; In other projects ... Largest CIDR block (subnet mask) Host ID size Mask bits 100.64.0.0 – 100.127.255.255: ... Subnet ID Number ...

  6. Supernetwork - Wikipedia

    en.wikipedia.org/wiki/Supernetwork

    Each route is summarized before being advertised to other districts. Each router now only recognizes its own subnet and the other 49 summarized routes. The determination of the summary route on a router involves the recognition of the number of highest-order bits that match all addresses. The summary route is calculated as follows.

  7. IP address - Wikipedia

    en.wikipedia.org/wiki/IP_address

    The subnet mask or CIDR notation determines how the IP address is divided into network and host parts. The term subnet mask is only used within IPv4. Both IP versions however use the CIDR concept and notation. In this, the IP address is followed by a slash and the number (in decimal) of bits used for the network part, also called the routing ...

  8. Routing table - Wikipedia

    en.wikipedia.org/wiki/Routing_table

    The network address and subnet mask of the interface, along with the interface type and number, are entered into the routing table as a directly connected network. A remote network is a network that can only be reached by sending the packet to another router.

  9. Classless Inter-Domain Routing - Wikipedia

    en.wikipedia.org/wiki/Classless_Inter-Domain_Routing

    A subnet mask is a bitmask that encodes the prefix length associated with an IPv4 address or network in quad-dotted notation: 32 bits, starting with a number of 1-bits equal to the prefix length, ending with 0-bits, and encoded in four-part dotted-decimal format: 255.255.255.0. A subnet mask encodes the same information as a prefix length but ...