Docs: Why priviledged

[iBobik]

Just a question (maybe to answer by README): Why it needs --priviledge option? Any way how to give necessary permissions but not everything?

[Nebukad93]

Probably due to the need to use port 500 for IKEv2

[iBobik]

And it is not enough to use port mapping?

Honza Pobořil https://honza.poboril.cz

18. 4. 2017 v 16:04, Nebukad93 [email protected]:

Probably due to the need to use port 500 for IKEv2

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[techotaku]

Below commands (in bin/start-vpn) need privileged, but you can do these on host.

sysctl net.ipv4.ip_forward=1
sysctl net.ipv6.conf.all.forwarding=1
sysctl net.ipv6.conf.eth0.proxy_ndp=1

Below commands (also in bin/start-vpn) need NET_ADMIN, --cap-add=NET_ADMIN should be enough.

iptables -t nat -A POSTROUTING -s 10.8.0.0/16 -o eth0 -m policy --dir out --pol ipsec -j ACCEPT
iptables -t nat -A POSTROUTING -s 10.8.0.0/16 -o eth0 -j MASQUERADE
ip6tables -t nat -A POSTROUTING -s fd6a:6ce3:c8d8:7caa::/64 -o eth0 -m policy --dir out --pol ipsec -j ACCEPT
ip6tables -t nat -A POSTROUTING -s fd6a:6ce3:c8d8:7caa::/64 -o eth0 -j MASQUERADE

[Nebukad93]

Yes, the --cap-add=NET_ADMIN is enough