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  2. Default route - Wikipedia

    en.wikipedia.org/wiki/Default_route

    The default route in Internet Protocol Version 4 (IPv4) is designated as the zero address, 0.0.0.0 / 0 in CIDR notation. [2] Similarly, in IPv6, the default route is specified by :: / 0. The subnet mask is specified as / 0, which effectively specifies all networks and is the shortest match possible. A route lookup that does not match any other ...

  3. Routing table - Wikipedia

    en.wikipedia.org/wiki/Routing_table

    The routing table contains network/next hop associations. These associations tell a router that a particular destination can be optimally reached by sending the packet to a specific router that represents the next hop on the way to the final destination. The next hop association can also be the outgoing or exit interface to the final destination.

  4. Broadcast address - Wikipedia

    en.wikipedia.org/wiki/Broadcast_address

    A special definition exists for the IP address 255.255.255.255. It is the broadcast address of the zero network or 0.0.0.0, which in Internet Protocol standards stands for this network, i.e. the local network. Transmission to this address is limited by definition, in that it is never forwarded by the routers connecting the local network to ...

  5. Wildcard mask - Wikipedia

    en.wikipedia.org/wiki/Wildcard_mask

    A wildcard mask is a mask of bits that indicates which parts of an IP address are available for examination. In the Cisco IOS, [1] they are used in several places, for example:

  6. Reserved IP addresses - Wikipedia

    en.wikipedia.org/wiki/Reserved_IP_addresses

    255.255.255.255/32 255.255.255.255 1: Subnet Reserved for the "limited broadcast" destination address [1] IPv6

  7. 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 ...

  8. Commuter rail in North America - Wikipedia

    en.wikipedia.org/wiki/Commuter_rail_in_North_America

    South Station in Boston, Massachusetts is a major transportation hub for the MBTA's commuter rail services.. The two busiest passenger rail stations in the United States are Pennsylvania Station and Grand Central Terminal, which are both located in the Borough of Manhattan in New York City, and which serve three of the four busiest commuter railroads in the United States (the Long Island Rail ...

  9. Montréal–Trudeau International Airport - Wikipedia

    en.wikipedia.org/wiki/Montréal–Trudeau...

    Trudeau is the busiest airport in the province of Quebec and the third-busiest airport in Canada by passenger traffic, with 22.4 million passengers in 2024. [4] It is one of eight Canadian airports with United States border preclearance and is one of the main gateways into Canada with 15.79 million or 71% of its passengers being on non-domestic ...