Interface already exist in bridge

tangiv

New Member
Jun 4, 2019
1
0
1
25
Hello,

I experiencing issues configuring a VM with a NIC tag with VLAN 100 on vmbr0 :
interface bond1.100 already exist in bridge mgmt
kvm: network script /var/lib/qemu-server/pve-bridge failed with status 6400
After a reboot I can now start the VM with a NIC in VLAN 100 but :
  • two VMs with a NIC in VLAN 100 can't communicate
  • a VM can't communicate with another "real" equipment in VLAN 100
  • from my laptop in VLAN 100 I can join the Proxmox WebUI also in VLAN 100
  • others VLANs works well

Code:
auto lo
iface lo inet loopback

iface enp7s0f0 inet manual
iface enp7s0f1 inet manual

#PCI
iface enp4s0f0 inet manual
iface enp4s0f1 inet manual

# STORAGE
auto bond0
iface bond0 inet static
    address  192.168.50.100
    netmask  255.255.255.0
    bond-slaves enp4s0f0 enp4s0f1
    bond-miimon 100
    bond-mode 802.3ad
    bond-xmit-hash-policy layer2+3

auto bond1
iface bond1 inet manual
    bond-slaves enp7s0f0 enp7s0f1
    bond-miimon 100
    bond-mode 802.3ad
    bond-xmit-hash-policy layer2+3
#BOND TRUNK

iface bond1.100 inet manual

auto mgmt
iface mgmt inet static
    address  192.168.100.100
    netmask  255.255.255.0
    gateway  192.168.100.1
    bridge_ports bond1.100
    bridge_stp off
#MGMT

auto vmbr0
iface vmbr0 inet manual
    bridge-ports bond1
    bridge-stp off
    bridge-fd 0
#TRUNK
I'm missing something I don't know what.

Thanks for your help
 

Richard

Proxmox Staff Member
Staff member
Mar 6, 2015
771
28
48
Austria
iface bond1.100 inet manual

auto mgmt
iface mgmt inet static
address 192.168.100.100
netmask 255.255.255.0
gateway 192.168.100.1
bridge_ports bond1.100
bridge_stp off
#MGMT
Configure management network rather as follows:

Code:
auto vmbr0.100
iface vmbr0.100 inet static
   address  192.168.100.100
   netmask  255.255.255.0
   gateway 192.168.100.1
and set "vlan-aware" for vmbr0.
 

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