Multiple network interfaces on Mac OSX

[devlaps]

Hi Folks, I'd like to create instances that have multiple interfaces. One interface, connects to a shared interface out to the Internet, the other instance connected to a private bridge on my MBP.

I found some posts online and it looks like folks have done it before, but it's not working for me. Here's have I've done:

sudo ifconfig bridge200 create
sudo ifconfig bridge200 inet 192.168.10.1 netmask 255.255.255.0
sudo ifconfig bridge200 up

Followed by:

multipass launch -n first-vm --cpus 4 --disk 20G --memory 8G --cloud-init cloud-init.yaml \
--network en0 \
--network name=bridge200,mode=manual

When I do this, I get the following error:

launch failed: Invalid arguments supplied
Invalid network options supplied

I can see the bridge on my laptop:

bridge200: flags=8863<UP,BROADCAST,SMART,RUNNING,SIMPLEX,MULT ICAST> mtu 1500
options=63<RXCSUM,TXCSUM,TSO4,TSO6>
ether XX:XX:XX:XX:XX:XX
inet 192.168.10.1 netmask 0xffffff00 broadcast 192.168.10.255
Configuration:
id 0:0:0:0:0:0 priority 0 hellotime 0 fwddelay 0
maxage 0 holdcnt 0 proto stp maxaddr 100 timeout 1200
root id 0:0:0:0:0:0 priority 0 ifcost 0 port 0
ipfilter disabled flags 0x0
media: <unknown type>
status: inactive

However, Multipass networks does not see the bridge:

❯ mp networks
Name Type Description
en0 wifi Wi-Fi
en4 ethernet Ethernet Adapter (en4)
en5 ethernet Ethernet Adapter (en5)
en6 ethernet Ethernet Adapter (en6)
en7 usb USB 10/100/1000 LAN

Greatly appreciate any pointers!

Dave.

[devlaps]

It seems like this is not a common problem folks have. I've started reading through the Multipass source code and feel pretty good about being able to fix this. Please PM me or ping me here if you are interested in what I find.

Dave.