On Thu, 6 Mar 2014 14:03:54 +0100 arnaud gaboury <arnaud.gaboury@xxxxxxxxx> wrote: > I have no idea what part of the setup is missing. > > I run a custom kernel, so is there any wrong configuration on it ? The > kernel is moderately customized, but maybe did I disabled some needed > flag ? I can't help you with your specific problem, but one thing is that you need to do, is to enable the machine to forward ip packets from one interface to another. Create something like a /etc/sysctl.d/99-sysctl.conf and add this: # Enable packet forwarding net.ipv4.ip_forward = 1 net.ipv6.conf.all.forwarding = 1 If you run a firewall like iptables you'll also have to enable packet forwarding between the interfaces in the firewall. -- Joakim