How to connect to Ubuntu 17.04 Shared Network?

Question

I have read next guide: Sharing Connection to other PCs (Via Wired Ethernet)

Did everything as it is there and even more, with no success. I have next set-up: Optic Fiber + Modem -> Microtik -> 26port Switch -> my main Ubuntu PC -> second Ubuntu PC

The problem is that after I try to do a bridge or a simple share to that network, my main Ubuntu just refuse to connect to that network, auto switch off instantly. Second network between two PC works fine, ping go both directions.

How can I fix this problem?

Answer 1

Answer found here: Cannot share my Ethernet connection anymore after 17.04 install

Open Terminal and run:

sudo apt-get install dnsmasq-base

And even more, if you want to have custom IP for shared network do following:

nmcli connection modify $CONNECTION_ID +ipv4.addresses 192.168.5.1/24

where $CONNECTION_ID is found via nmcli connection show