Problem with Bridge Port (Beginner)

[REtender]

Hey there,

I installed Proxmox on my new dedicated Server, but I'm having problems with the bridging:

My dedicated maschine has the IP
xxx.xxx.xx.191

Interfaces configuration Host / dedicated:

auto lo
iface lo inet loopback

iface enp2s0 inet manual

auto vmbr0
iface vmbr0 inet static
        address  xxx.xxx.xx.191
        netmask  255.255.255.0
        gateway  xxx.xxx.xx.1
        bridge_ports enp2s0
        bridge_stp off
        bridge_fd 0

Now I installed a VM with Debian 9.

Interfaces configuration VM:

allow-hotplug eth0

iface eth0 inet dhcp

with this configuration the VM has a connection (testing via apt-get update).

But when I'm trying to assign a IP to the VM it doesnt work:
VM Interface with assigned IP (doesnt work):

iface eth0 inet static
        address  xxx.xxx.xx.192
        netmask  255.255.255.0
        gateway  xxx.xxx.xx.1

Important information:
I did that on both the dedicated Host + the VM (to get back eth0):

GRUB_CMDLINE_LINUX="net.ifnames=0 biosdevname=0"
grub-mkconfig -o /boot/grub/grub.cfg
reboot

When I'm changing bridge_ports enp2s0 to bridge_ports eth0, the Web Panel doesnt show up and I have to set it to enp2s0 again via KVM

 

[gosha]

Hi!
Try "allow-hotplug eth0" in VM change to "auto eth0".

 

[REtender]

Thanks for the reply!

It changed it on the VM, but it doesnt work :/

Full VM Interfaces:

auto lo
iface lo inet loopback

auto eth0

iface eth0 inet static
       address  xxx.xxx.xx.192
       netmask  255.255.255.0
       gateway  xxx.xxx.xx.1

ip a on the VM says:

1: lo [...]
2 eth0 [..]
   inet xxx.xxx.xx.192/24 brd xxx.xxx.xx255 scope global eth0
   [..]

Spoiler: ip a on host (dedicated):

1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group defaul                                                                                                                                                             t qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host
       valid_lft forever preferred_lft forever
2: enp2s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master vm                                                                                                                                                             br0 state UP group default qlen 1000
    link/ether xx:xx:xx:xx:xx:66 brd ff:ff:ff:ff:ff:ff
3: vmbr0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP grou                                                                                                                                                             p default qlen 1000
    link/ether xx:xx:xx:xx:xx:66 brd ff:ff:ff:ff:ff:ff
    inet xxx.xxx.xx.191/24 brd xxx.xxx.xx.255 scope global vmbr0
       valid_lft forever preferred_lft forever
    inet6 xxx::xxx:xxxx:xxxx:d366/64 scope link
       valid_lft forever preferred_lft forever
4: tap100i0: <BROADCAST,MULTICAST,PROMISC,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast                                                                                                                                                              master vmbr0 state UNKNOWN group default qlen 1000
    link/ether xx:xx:xx:xx:xx:89 brd ff:ff:ff:ff:ff:ff

 

[REtender]

Edit: When i choose:

iface eth0 inet dhcp

ip a says:

inet 10.10.65.xxx

I'm really confused.

My IP Block starts with 109.

Does someone have a clue? :/