TSCTP Homepage

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💡 What is TSCTP?
😀 Examples
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💾 Build from Sources
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📰 Latest News

October 24, 2025
New release: tsctp-0.8.4.
September 21, 2025
New release: tsctp-0.8.3.
News Archive
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💡 What is TSCTP?

TSCTP is an SCTP test tool. Its purpose is to perform basic SCTP functionality tests to check implementations interoperability and to verify that the SCTP stack is working.

😀 Examples

Preparations

TSCTP uses the SCTP protocol, i.e. sockets with protocol IPPROTO_SCTP. It may be necessary to allow loading the SCTP kernel module first, if not already enabled. The following code blocks show how to enable it permanently.

SCTP on Linux

echo "sctp" | sudo tee /etc/modules-load.d/sctp.conf
if [ -e /etc/modprobe.d/sctp-blacklist.conf ] ; then
   sudo sed -e 's/^blacklist sctp/# blacklist sctp/g' -i /etc/modprobe.d/sctp-blacklist.conf
fi
sudo modprobe sctp
lsmod | grep sctp

SCTP on FreeBSD

echo 'sctp_load="YES"' | sudo tee --append /boot/loader.conf
sudo kldload sctp
kldstat | grep sctp

TSCTP Server Mode

Server mode: bind to all IPv4 and IPv6 addresses, listen on port 1234.

tsctp -L :: -L 0.0.0.0 -p 1234

TSCTP Client Mode

Client mode: bind to all IPv4 and IPv6 addresses, connect to localhost (127.0.0.1) on port 1234, send unlimited number of messages of 4096 bytes each, stop after 10 s.
```
tsctp -L :: -L 0.0.0.0 -n 10 -l 1000 -p 1234 127.0.0.1
```
Client mode: bind to all IPv4 and IPv6 addresses, connect to localhost (127.0.0.1) on port 1234, send unlimited number of messages of 4096 bytes each, stop after 10 s.
```
tsctp -L :: -L 0.0.0.0 -n 0 -T 10 -l 4096 -p 1234 127.0.0.1
```

📦 Binary Package Installation

Please use the issue tracker at https://github.com/dreibh/tsctp/issues to report bugs and issues!

Ubuntu Linux

For ready-to-install Ubuntu Linux packages of TSCTP, see Launchpad PPA for Thomas Dreibholz!

sudo apt-add-repository -sy ppa:dreibh/ppa
sudo apt-get update
sudo apt-get install tsctp

Fedora Linux

For ready-to-install Fedora Linux packages of TSCTP, see COPR PPA for Thomas Dreibholz!

sudo dnf copr enable -y dreibh/ppa
sudo dnf install tsctp

FreeBSD

For ready-to-install FreeBSD packages of TSCTP, it is included in the ports collection, see FreeBSD ports tree index of net/tsctp/!

sudo pkg install tsctp

Alternatively, to compile it from the ports sources:

cd /usr/ports/net/tsctp
make
sudo make install

💾 Build from Sources

TSCTP is released under the BSD License.

Please use the issue tracker at https://github.com/dreibh/tsctp/issues to report bugs and issues!

Development Version

The Git repository of the TSCTP sources can be found at https://github.com/dreibh/tsctp:

git clone https://github.com/dreibh/tsctp
cd tsctp
sudo ci/get-dependencies --install
cmake .
make

Note: The script ci/get-dependencies automatically installs the build dependencies under Debian/Ubuntu Linux, Fedora Linux, and FreeBSD. For manual handling of the build dependencies, see the packaging configuration in debian/control (Debian/Ubuntu Linux), tsctp.spec (Fedora Linux), and Makefile FreeBSD.

Contributions:

Issue tracker: https://github.com/dreibh/tsctp/issues. Please submit bug reports, issues, questions, etc. in the issue tracker!
Pull Requests for TSCTP: https://github.com/dreibh/tsctp/pulls. Your contributions to TSCTP are always welcome!
CI build tests of TSCTP: https://github.com/dreibh/tsctp/actions.
Coverity Scan analysis of TSCTP: https://scan.coverity.com/projects/dreibh-tsctp.

Current Stable Release

The tarball has been signed with my GnuPG key 21412672518D8B2D1862EFEF5CD5D12AA0877B49. Its authenticity and integrity can be verified by:

gpg --keyserver hkp://keyserver.ubuntu.com --recv-keys 21412672518D8B2D1862EFEF5CD5D12AA0877B49
gpg --verify tsctp-<VERSION>.tar.xz.asc tsctp-<VERSION>.tar.xz

Old Stable Releases

The tarballs have been signed with my GnuPG key 21412672518D8B2D1862EFEF5CD5D12AA0877B49. Its authenticity and integrity can be verified by:

gpg --keyserver hkp://keyserver.ubuntu.com --recv-keys 21412672518D8B2D1862EFEF5CD5D12AA0877B49
gpg --verify tsctp-<VERSION>.tar.xz.asc tsctp-<VERSION>.tar.xz

TSCTP An SCTP Test Tool