Hi,
We have old old x86 Mikrotik with 3.30 firmware.
On this PC we have 4 ports.
Port 1 - WAN1 (On WAN1 we have 254 public addresses each added in IP>addresses)
Port 2 -WAN2
Port 3- Connected to small switch for public addresses
Port 4 - Trunk and all Vlans
Port 1 and Port 3 are in bridge1
So I can connect my laptop to this small switch (connected to port3 in MT) and get any Public address that I want.
It was working fine for 5 years.
Today our new RB2011 arrived. We wanted to replace this x86 Mikrotik with new RB. So I just coppied most of configuration from x86 to new RB.
I wanted to test everything so while old MT was still working I connected ETH1 from new RB(which is WAN1) to this small switch and configured Public Ip address. It was working fine until I added WAN1 and ETH3 on new RB to bridge.
Now ALL my network stopped working on new RB and old MT.
After many hours I tried setting ETH1 as master port for ETH3. It started to work just fine. But I am just curious. Why can’t I add WAN1 and other port to bridge? It ruins all network. On 3.30 it was working fine. On 6.18 it doesn’t work. And it even breaks running x86.