23.1.11 - How to get a device out the other end of an ipsec?

[sanzo77]

Hi everyone,

I'm fairly new to Opnsense and in general I don't have highly specific expertise on firewalls, I get by, but I'm not an expert. So I am asking for advice from you.

I have two small offices in two different cities, each has its own internet connection with public ip, not static, on which I have configured dynamic dns.

Let's call them office A and office B.

In office A I have Opnsense, in office B I have a simple router.

I have configured an ipsec vpn between office A and office B and the two offices see each other correctly, each accessing each other's resources.

Now I would like a particular device from office A to show up externally with the public ip of office B. The device in question is not a pc or anything else that I can install something on, I have to act on the Opnsense side I guess by creating an adhoc rule for the ip of that device for it to come out on the internet from office B, but I don't know how to do that.

Would anyone be able to help me?

Thanks