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2. Packet Sender - Wikipedia

   en.wikipedia.org/wiki/Packet_Sender

   Packet Sender is an open source utility to allow sending and receiving TCP and UDP packets. It also supports TCP connections using SSL, intense traffic generation, HTTP(S) GET/POST requests, and panel generation. It is available for Windows, Mac, and Linux. It is licensed GNU General Public License v2 and is free software. [1]

3. 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 ...

4. ttcp - Wikipedia

   en.wikipedia.org/wiki/Ttcp

   The statistics output covers TCP/UDP payload only (not protocol overhead) and is generally displayed by default in KiB/s (kibiBytes per second) instead of kb/s (kilobits per second), but it can be configured to be displayed in other ways on some implementations. The reported throughput is more accurately calculated on the receive side than the ...

5. netcat - Wikipedia

   en.wikipedia.org/wiki/Netcat

   The last version (1.10) was released in March 1996. [4] There are several implementations on POSIX systems, including rewrites from scratch like GNU netcat [5] or OpenBSD netcat, [6] the latter of which supports IPv6 and TLS. The OpenBSD version has been ported to the FreeBSD base, [7] Windows/Cygwin, [8] and Linux. [9]

6. Port scanner - Wikipedia

   en.wikipedia.org/wiki/Port_scanner

   However, if a UDP packet is sent to a port that is not open, the system will respond with an ICMP port unreachable message. Most UDP port scanners use this scanning method, and use the absence of a response to infer that a port is open. However, if a port is blocked by a firewall, this method will falsely report that the port is open. If the ...

7. traceroute - Wikipedia

   en.wikipedia.org/wiki/Traceroute

   [10] On Windows, tracert sends ICMP Echo Request packets, rather than the UDP packets traceroute sends by default. [11] The time-to-live (TTL) value, also known as hop limit, is used in determining the intermediate routers being traversed towards the destination. Traceroute sends packets with TTL values that gradually increase from packet to ...

8. Echo Protocol - Wikipedia

   en.wikipedia.org/wiki/Echo_Protocol

   It was originally proposed as a way to test and measure an IP network. A host may connect to a server that supports the Echo Protocol using the Transmission Control Protocol (TCP) or the User Datagram Protocol (UDP) on the well-known port number 7. The server sends back an identical copy of the data it received.

9. MTR (software) - Wikipedia

   en.wikipedia.org/wiki/MTR_(software)

   MTR also has a User Datagram Protocol (UDP) mode (invoked with "-u" on the command line or pressing the "u" key in the curses interface) that sends UDP packets, with the time to live (TTL) field in the IP header increasing by one for each probe sent, toward the destination host. When the UDP mode is used, MTR relies on ICMP port unreachable ...