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  2. List of TCP and UDP port numbers - Wikipedia

    en.wikipedia.org/wiki/List_of_TCP_and_UDP_port...

    The port numbers in the range from 0 to 1023 (0 to 2 10 − 1) are the well-known ports or system ports. [3] They are used by system processes that provide widely used types of network services. On Unix-like operating systems, a process must execute with superuser privileges to be able to bind a network socket to an IP address using one of the ...

  3. 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 IPv6 assigns special uses or applications for various ...

  4. Wildcard mask - Wikipedia

    en.wikipedia.org/wiki/Wildcard_mask

    For example, a subnet mask of 255.255.255.0 (11111111.11111111.11111111.00000000 2) inverts to a wildcard mask of 0.0.0.255 (00000000.00000000.00000000.11111111 2). A wild card mask is a matching rule. [2] The rule for a wildcard mask is: 0 means that the equivalent bit must match; 1 means that the equivalent bit does not matter

  5. IP address - Wikipedia

    en.wikipedia.org/wiki/IP_address

    All receivers capture the network packet. The address 255.255.255.255 is used for network broadcast. In addition, a more limited directed broadcast uses the all-ones host address with the network prefix. For example, the destination address used for directed broadcast to devices on the network 192.0.2.0 / 24 is 192.0.2.255. [24]

  6. Simple Service Discovery Protocol - Wikipedia

    en.wikipedia.org/wiki/Simple_Service_Discovery...

    Microsoft's IPv6 SSDP implementations in Windows Media Player and Server use the link-local scope address. Microsoft uses port number 2869 for event notification and event subscriptions. However, early implementations of SSDP also used port 5000 for this service.

  7. Broadcast address - Wikipedia

    en.wikipedia.org/wiki/Broadcast_address

    A broadcast address is a network address used to transmit to all devices connected to a multiple-access communications network. A message sent to a broadcast address may be received by all network-attached hosts. In contrast, a multicast address is used to address a specific group of devices, and a unicast address is used to address a single ...

  8. Multicast address - Wikipedia

    en.wikipedia.org/wiki/Multicast_address

    Addresses in the reserved 224.2.0.0 / 16 range are not individually assigned by IANA. Fallen out of use [ 11 ] : §10 for security considerations, experimental Session Announcement Protocol [ 12 ] was the primary means of supplying addresses through Session Description Protocol , which now is mostly used in the establishment of private sessions.

  9. Default gateway - Wikipedia

    en.wikipedia.org/wiki/Default_gateway

    The IP-address could be 91.198.174.2. In this example, none of the internal routers know the route to that host, so they will forward the packet through router1's gateway or default route . [ 1 ] Every router on the packet's way to the destination will check whether the packet's destination IP-address matches any known network routes.