How do I avoid IPV6 errors when trying to use kylemanna/openvpn image

Jackie

11/27/23, 7:40 PM

I am trying to run the following deploy command...

docker run -v $OVPN_DATA:/etc/openvpn -d -p 1194:1194/udp --cap-add=NET_ADMIN kylemanna/openvpn

I get

Sysctl error for disable_ipv6, please run docker with '--sysctl net.ipv6.conf.all.disable_ipv6=0'

So I run

docker run -v $OVPN_DATA:/etc/openvpn -d -p 1194:1194/udp --cap-add=NET_ADMIN --sysctl net.ipv6.conf.all.disable_ipv6=0 kylemanna/openvpn

But I get

Sysctl error for default forwarding, please run docker with '--sysctl net.ipv6.conf.default.forwarding=1'

So I try...

docker run -v $OVPN_DATA:/etc/openvpn -d -p 1194:1194/udp --cap-add=NET_ADMIN --sysctl net.ipv6.conf.all.disable_ipv6=0 --sysctl net.ipv6.conf.default.forwarding=1 kylemanna/openvpn

But it doesn't take the sysctl value...

Sysctl error for all forwarding, please run docker with '--sysctl net.ipv6.conf.all.forwarding=1'

So I tried other variations...

docker run -v $OVPN_DATA:/etc/openvpn -d -p 1194:1194/udp --cap-add=NET_ADMIN --sysctl "net.ipv6.conf.all.disable_ipv6=0 net.ipv6.conf.default.forwarding=1" kylemanna/openvpn
docker run -v $OVPN_DATA:/etc/openvpn -d -p 1194:1194/udp --cap-add=NET_ADMIN --sysctl net.ipv6.conf.all.disable_ipv6=0 net.ipv6.conf.default.forwarding=1 kylemanna/openvpn
docker run -v $OVPN_DATA:/etc/openvpn -d -p 1194:1194/udp --cap-add=NET_ADMIN --sysctl net.ipv6.conf.all.disable_ipv6=0,net.ipv6.conf.default.forwarding=1 kylemanna/openvpn

But none seem to work. How do I turn off ipv6 for the image?

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Jackie

11/27/23, 7:51 PM

In case others have the same issue they looked the same but not quite. The actual command that works is...

docker run -v $OVPN_DATA:/etc/openvpn -d -p 1194:1194/udp --cap-add=NET_ADMIN --sysctl net.ipv6.conf.all.disable_ipv6=0 --sysctl net.ipv6.conf.default.forwarding=1 --sysctl net.ipv6.conf.all.forwarding=1 kylemanna/openvpn

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