Note: Dues to Jool's GRO offload limitation, it can not be used in cloud environments such as GCE.
NAT64 runs on an Ubuntu 16.04.2 host and is implemented using Jool v3.5.4. Start by installing the Jool dependencies:
sudo apt-get update && sudo apt-get install -y zip gcc make linux-headers-$(uname -r) dkms \
pkg-config libnl-genl-3-dev autoconf
Install the Jool kernel module:
curl -O https://raw.githubusercontent.com/NICMx/releases/master/Jool/Jool-3.5.4.zip
unzip Jool-3.5.4.zip
sudo dkms install Jool-3.5.4
Install the Jool userspace application:
cd Jool-3.5.4/usr && ./autogen.sh && ./configure && sudo make && sudo make install
Update sysctl to allow IPv6 forwarding:
sudo bash -c 'cat << EOF > /etc/sysctl.conf
net.ipv6.conf.all.forwarding=1
EOF'
sudo sysctl -p
If 'jool' does not show up in $PATH, add an alias for jool:
cat >> ~/.bashrc << EOF
# Alias definitions
if [ -f ~/.bash_aliases ]; then
. ~/.bash_aliases
fi
EOF
echo "alias jool='/usr/local/bin/jool'" >> ~/.bash_aliases
source ~/.bashrc
Load the Jool kernel module via modprobe:
sudo modprobe jool
Configure the Jool IPv4 address and port range used for translating synthetic IPv6 addresses:
sudo jool -4 -a 10.138.0.2 7000-8000
Verify the Jool IPv4 address pool:
jool -4 -d
0 TCP 10.138.0.2 7000-8000
0 UDP 10.138.0.2 7000-8000
0 ICMP 10.138.0.2 7000-8000
(Fetched 3 samples.)
Configure the synthetic IPv6 prefix used by Jool to NAT IPv6-only client addresses. The prefix specifies synthetic IPv6 addresses and should match the prefix used by DNS64.
sudo jool -6 -a 64:ff9b::/96
Verify the Jool IPv6 prefix:
jool -6 -d
64:ff9b::/96
(Fetched 1 entries.)
Verify the status of Jool:
jool -d
Status: Enabled
Manually enabled (--enable, --disable): ON
<SNIP>
Enable jool if jool -d shows Status: Disabled:
jool --enable