Need help getting VM networking to work (Docker ports)

[Reaperberri]

Hi everyone. I installed TrueNAS Scale on my machine, and set up an Ubuntu VM.
I followed the guide in the docs to get access to the NAS from the VM by settings up a bridge interface, and everything works fine. I can access the NFS shares without a problem.
The issue is, I can't access any Docker containers that I expose with ports when I'm using this bridge interface.

My setup is:
TrueNAS
enp4s0: DHCP off, no IP
br0: DHCP off, IP is 192.168.1.186/24

Global configuration
Default gateway: 192.168.1.1
Nameservers: 1.1.1.1 1.0.0.1

VM
Connected to br0, has static ip 192.168.1.100
/etc/network/interfaces:

Code:

iface ens3 inet static
address 192.168.1.100
netmask 255.255.255.0
gateway 192.168.1.1
dns-nameservers 1.1.1.1 1.0.0.1

I can ping between TrueNAS and the VM, and I can ssh into the VM from my PC on the network.
I just can't access anything in the browser (as simple as an nginx container, that worked without the bridge interface)

What am I doing wrong?
Thanks!

 

[Reaperberri]

For anyone who might be seeing this post after Googling (or DuckDuckGoing it), I think the issue was that the VM IP (.100) was before the TrueNAS (.186) IP.
After changing TrueNAS to 192.168.1.80 and restarting everything, it's working as intended.

 

[inman.turbo]

It was probably just the restart itself that fixed it. Scale networking seems to get messed up in strange and mysterious ways between changes, pending a reboot.