OpenVPN Instance, Bind to Interface, not to IP

[SchengFui]

Hi,

in Legacy OpenVPN-Configuration it was possible to bind to an Interface (WAN i.e.). In Instances this is no longer possible, GUI accepts only IP-Adress-Values.

WAN-Interface is configured via DHCP, ip changes frequently and this breaks binding to the IP-Address.

How can i bind an OpenVPN-Instance to a specific Interface instead of an IP-Address?

OPNsense 25.1.7_4

Thank you,
 Heiko

[Patrick M. Hausen]

Why can't you bind to 0.0.0.0/any?

[SchengFui]

because in my curront configuration the tunnel does not route traffic and for testing purposes i want to bind to a specific interface to sort things out