Anevicon - A High-Performant UDP-based Load Generator

A high-performant traffic generator, designed to be as convenient and reliable as it is possible. It sends numerous UDP-packets to a server, thereby simulating an activity that can be produced by your end users or a group of hackers.


From package registry
This command will download the source code from the package registry and compile Anevicon right for your platform, using our lovely Cargo:
$ cargo install anevicon

As a repository
If you want to become a contributor, then you need to manually clone this repository and compile the whole project using Cargo, for future development.
$ git clone
$ cd anevicon
$ cargo build --release

Pre-compiled binaries
The easiest way to run Anevicon on your system is to download the pre-compiled binaries from the existing releases, which doesn't require any external software (unlike the two previous approaches).

anevicon 4.1.2
Temirkhan Myrzamadi <[email protected]>
An UDP-based server stress-testing tool, written in Rust.

    anevicon [FLAGS] [OPTIONS] --receiver <SOCKET-ADDRESS>...

    -b, --allow-broadcast    Allow sockets to send packets to a broadcast
    -h, --help               Prints help information
    -V, --version            Prints version information

        --date-time-format <STRING>
            A format for displaying local date and time in log messages. Type
            `man strftime` to see the format specification.
            Specifying a different format with days of weeks might be helpful
            when you want to test a server more than one day. [default: %X]
        --display-periodicity    <TIME-SPAN>
            A time span per displaying test summaries. It isn't recommended to
            set a low value (say, 10ms) for performance reasons [default: 3secs]
    -l, --packet-length <POSITIVE-INTEGER>
            Repeatedly send a random-generated packet with a specified bytes
            length. The default is 32768
    -p, --packets-count <POSITIVE-INTEGER>
            A count of packets for sending. When this limit is reached, then the
            program will exit [default: 18446744073709551615]
    -r, --receiver <SOCKET-ADDRESS>...
            A receiver of generated traffic, specified as an IP-address and a
            port number, separated by a colon.
            This option can be specified several times to test multiple
            receivers in parallel mode.
            All receivers will be tested identically. Run multiple instances of
            this program to describe specific characteristics for each receiver.
    -f, --send-file <FILENAME>
            Interpret the specified file content as a single packet and
            repeatedly send it to each receiver
    -m, --send-message <STRING>
            Interpret the specified UTF-8 encoded text message as a single
            packet and repeatedly send it to each receiver
        --send-periodicity <TIME-SPAN>
            A periodicity of sending packets. This option can be used to
            decrease test intensity [default: 0secs]
    -t, --send-timeout <TIME-SPAN>
            A timeout of sending every single packet. If a timeout is reached,
            an error will be printed [default: 10secs]
    -s, --sender <SOCKET-ADDRESS>
            A sender of generated traffic, specif   ied as an IP-address and a port
            number, separated by a colon [default:]
    -d, --test-duration <TIME-SPAN>
            A whole test duration. When this limit is reached, then the program
            will exit [default: 64years 64hours 64secs]
    -v, --verbosity <LEVEL>
            Enable one of the possible verbosity levels. The zero level doesn't
            print anything, and the last level prints everything [default: 3]
            [possible values: 0, 1, 2, 3, 4, 5]
    -w, --wait <TIME-SPAN>
            A waiting time span before a test execution used to prevent a launch
            of an erroneous (unwanted) test [default: 5secs]

For more information see <>.

Using as a program

Minimal command
All you need is to provide the testing server address, which consists of an IP address and a port number, separated by the colon character. By default, all sending sockets will have your local address:
# Test the 80 port of the site using your local address
$ anevicon --receiver

Multiple receivers
Anevicon also has the functionality to test multiple receivers in parallel mode, thereby distributing the load on your processor cores. To do so, just specify the --receiver option several times.
# Test the 80 port of and the 13 port of in parallel
$ anevicon --receiver --receiver

IP spoofing
Using the IP spoofing technique, hackers can protect their bandwidth from server response messages and hide their real IP address. You can imitate it via the --sender command-line option, as described below:
# Test the 80 port of the site using its own IP address
$ anevicon --receiver --sender

End conditions
Note that the command above might not work on your system due to the security reasons. To make your test deterministic, there are two end conditions called --test-duration and --packets-count (a test duration and a packets count, respectively):
# Test the 80 port of the site with the two limit options
$ anevicon --receiver --test-duration 3min --packets-count 7000

Packet size
Note that the test below will end when, and only when one of two specified end conditions become true. And what is more, you can specify a global packet length in bytes:
# Test the 80 port of with the packet length of 4092 bytes
$ anevicon --receiver --packet-length 4092

Custom message
By default, Anevicon will generate a random packet with a specified size. In some kinds of UDP-based tests, packet content makes sense, and this is how you can specify it using the --send-file or --send-message options:
# Test the 80 port of with the custom file 'message.txt'
$ anevicon --receiver --send-file message.txt

# Test the 80 port of with the custom text message
$ anevicon --receiver --send-message "How do you do?"

Test intensity
In some situations, you don't need to generate the maximum amount of packets per second, you might want to decrease the intensity of packets sending. To do so, there is one more straightforward option called --send-periodicity.
# Test the 80 port of waiting for 270 microseconds after each send
$ anevicon --receiver --send-periodicity 270us

Verbosity levels
Anevicon supports a few verbosity levels from zero to five inclusively. Zero level prints nothing, first level prints only errors, second level adds warnings, third adds notifications, fourth adds debugs, and fifth - traces.
# Test the 80 port of using the fourth verbosity level
$ anevicon --receiver --verbosity 4

Date-time format
You can explicitly specify your custom date-time format that is used for displaying every log message. Setting a format with days and weeks might be helpful if you want to test something more than one day:
# Test with the format displaying months, days, years, hours, minutes, and seconds
$ anevicon --receiver --date-time-format "%D %X"

Specific options
Wait 7 seconds, and then start to test, displaying summaries after every 4 seconds, and exit with an error if time to send a packet is longer than 200 milliseconds:
# Test the 80 port of the site using the specific options
$ anevicon --receiver --wait 7s --display-periodicity 4secs --send-timeout 200ms

Using as a library
First, you need to link the library with your executable (or another library) by putting anevicon_core to the dependencies section in your Cargo.toml like this:
anevicon_core = "*"
Next, just copy this code into your main function and launch the compiled program, which simply sends one thousand empty packets to the site:
use anevicon_core::summary::TestSummary;
use anevicon_core::testing::send;

// Setup the socket connected to the domain
let socket = std::net::UdpSocket::bind("").unwrap();

let packet = vec![0; 32768];
let mut summary = TestSummary::default();

// Execute a test that will send one thousand packets
// each containing 32768 bytes.
for _ in 0..1000 {
    if let Err(error) = send(&socket, &packet, &mut summary) {
        panic!("{}", error);

    "The total seconds passed: {}",
This is how you are able to build your own stress-testing bot. Now you can follow the official documentation to learn more about the anevicon_core abstractions.

  • The goal of Anevicon is to produce the maximum possible (for your computer) load on the specified receiver. Thereby, this DOES NOT MEAN that Anevicon will break ABSOLUTELY ANY SERVER while running on your computer.
  • Anevicon was developed as a means of testing stress resistance of web servers, and not for hacking, that is, the author of the project IS NOT RESPONSIBLE for any damage caused by your use of my program.
  • Despite the fact that Anevicon is heavily tested both automatically and manually, does not mean that the author is responsible for any bug in his work because the program comes with ABSOLUTELY NO WARRANTY.

Temirkhan Myrzamadi <[email protected]> (the author)

Anevicon - A High-Performant UDP-based Load Generator Anevicon - A High-Performant UDP-based Load Generator Reviewed by Zion3R on 9:07 AM Rating: 5