zprd

USAGE

ZPRD is a simple, unencrypted IPv4 tunnel tool, which is a server and can be a client.

The ZPRD was created to tunnel through complex routing setups with firewalls, NATs and VPNs.

NOTES

• The ZPRD establishes peer connections at startup.

• The ZPRD manages incomming connections.

• The ZPRD doesn't encrypt any data, as it is designed to have very less overhead. It is intended to be used in combination with VPN software.

• The ZPRD ONLY tunnels IPv4 (and IPv6 experimental) packets over UDP and IPv4/IPv6.

  • protocol stacking: ethernet > ipv4/6 > udp > ipv4 > payload

Manual Setup

• compile zprd / installation

  mkdir -p build && cd build
  cmake .. && make -j3 && make install

• setup /etc/zprd.conf (content; initial)

Itun3

• setup interface (this is usually done by the daemontools)

ip tuntap add mode tun user ... tun3

• start zprd (this is usually done by the daemontools)

./zprd

Setup using daemontools on Gentoo

• fetch the portage overlay

  cd /usr
  git clone https://github.com/zserik/portage-zscheile

• emerge the package with: emerge -av =net-misc/zprd-9999

• setup /etc/zprd.conf (content; initial)

  Itun3
  A192.168.0.1/24

• enable the service with: ln -s -t /service /etc/zprd

• enable svscan with: rc-update add svscan

• start svscan with: /etc/init.d/svscan restart