OPNSense on Linode (KVM) - create sub interface and restart network services

[feosm]

Linode does not officially provide support for any OS other than Linux. Some guides for installation of FreeBSD do exist and the install does work.

I would like to install OPNSense on Linode (KVM) VM in paravirtualized mode. 

Linode VMs are provided a public IP (WAN) and and optional private IP. The problem is that a single network interface is used (single MAC). On Linux the public and private IPs are configured as "eth0" network interface and "eth0:1" sub interface.

When OPNSense boots on Linode VM only a single network interface is configured "vtnet0". I can then manually create the sub-interface as follows:

     "ifconfig vtnet0.1 create"

I then configure the private IP address as follows:

     "ifconfig vtnet0.1 inet 192.168.100.100/17"

If I launch the Web configuration tool, I can see both network interfaces, so I know I'm going in the right direction. My questions are:

1) In OPNSense, how do I manually restart the network and routing services following the creation of the sub-interface and private IP assignment?

2) How do I save the above sub-interface configuration and private IP assignment so that they persist following a reboot?

Any guidance/suggestions appreciated.

[franco]

Hi feosm,

You can use the following facility for persistent scripting:

https://docs.opnsense.org/development/backend/autorun.html

Note that you need the "early" stage type, as this is supposed to bring up any interfaces that are missing from a normal boot and makes it viable to use the spawned devices in the configuration consistently.

For restart you can do:

# /usr/local/etc/rc.reload_all

But if you do the former, you can use the GUI to configure the new device directly.


Cheers,
Franco