Force Gluetun to use eth1

[ddalben]

This might be a common networking type questions, fix or issues, but I was wondering if I can force Glutun to bind on eth1 instead of eth0 on UNRIAD

eth1 is a custom network that gets pushed to the docker network and my Gluetun container does have an IP is bound to eth1. But when Gluetun establishes the VPN, it binds onto eth0. IS there any way to force it onto eth1?