I have made a speciale solution for connecting old mac's to our modern TCP IP network.with the help of MacIPgw. See:         http://www.macip.net

You can download the virtual box image from there and read what to do. Basicly start the instance and folowup some IP changes...

You can also find much information in this post:

https://68kmla.org/f...c/?hl=macip.net

If you have any questions....please let me know! Always happy to help people with this solution.