Clone this repo:
  1. 95066fc dns: close endpoint when no longer needed by David Crawshaw · 4 days ago master
  2. 4e49ba9 dns: reduce lookup timeout and retry attempts by David Crawshaw · 5 days ago
  3. 49b84f4 Revert "Merge upstream into local copy." by Matt Perry · 5 days ago
  4. 9daf6c6 Revert "Generate random numbers in chunks of 256." by Matt Perry · 5 days ago
  5. 027ef9c Generate random numbers in chunks of 256. by Matt Perry · 5 days ago


Netstack is a network stack written in Go.

Getting started

Try it out on Linux by installing the tun_tcp_echo demo:

go install

Create a TUN device with:

[sudo] ip tuntap add user <username> mode tun <device-name>
[sudo] ip link set <device-name> up
[sudo] ip addr add <ipv4-address>/<mask-length> dev <device-name>

Then run with:

tun_tcp_echo <device-name> <ipv4-address> <port>


We would love to accept contributions, but we have not yet worked out how to handle them. Please contact us before sending any pull requests.

Whatever we do decide on will require signing the Google Contributor License. Please see for more details.


This is not an official Google product (experimental or otherwise), it is just code that happens to be owned by Google.