Florian Schaal's Install script and bridged networking

[bebraver_Axel]

Hi there,

First of all thank you to @Florian Schaal for creating this awesome script and anybody who is contributing to it

I have a Hetzner box with two additional IPs and while the script found them and set them up on the bridge using the routed method, installing a KVM stops at the network set up currently.

While I can see bridged networking support is limited, judging by the issue tracker, I can't seem to get routed to work either.

What do you need to enter when you install, for example, Ubuntu 18 LTS (server) as a guest KVM? I tried to configure it manually using the details provided by Hetzner and the MAC address is set to the one generated by the Robot.

Please help - happy to pay to get this sorted as I have spent way too much time already and perhaps it can go someway to support continued development

 

[bebraver_Axel]

Sadly even with LXC containers and dhcp, the result is the guest not having access

 

[LnxBil]

With Hetzner, it's generally not a PVE problem, it is a network problem indeed. In my subnet-setup, I just give the desired IPv4 and IPv6 to my container and it just works :-D

I'm using the routed approach and all containers and VMs are on a different bridge with my additional subnet. The PVE box itself routes everything, so I loose on of my subnet IPs to this approach.

 

[bebraver_Axel]

Hi LnxBil, I can't get the routed approach to work. Can you share your config as an example please? I looked at many wikis but still struggling :-/

 

[bebraver_Axel]

OK, just reinstalled to start fresh.. I have one main IP and two additionals. Florian's script kindly generated this /etc/network/interfaces file for me:

https://bin.privacytools.io/?276837e249160632#eHCQcKyGLvybMrWcpmQ6Uqm7pxDulKKbv+BNHS2RyGg=

xxx = my main IP
aaa = first additional IP
bbb = second additional IP

When I create a VM (Ubuntu 18 LTS) and enter the MAC address Hetzner's Robot generated, it will not assign an IP automatically. When I set the IP as per Robot info, I am not able to reach the outside and cannot complete my install (I am using net book iso - not the full phat one).

What am I doing wrong or need to do differently?

 

[bebraver_Axel]

I think I figured it out now. Moved away from routed to bridged and noted that we are all doing this netplan thing now

I set the guest VM to DHCP and removed the routes/amended the bridge. MAC addresses generated by the Robot and I got the lease with the right address.