Multiple vmbr w/o access

cmonty14

Active Member
Mar 4, 2014
338
4
38
Hi,
on Proxmox Server I have configured multiple vmbr, but only 1 vmbr is working.
What does this mean?

This is network configuration of Proxmox Server with 2 NICs:
auto enp1s0f1
iface enp1s0f1 inet manual

auto enp1s0f0
iface enp1s0f0 inet manual

iface eno1 inet manual

auto bond0
iface bond0 inet manual
slaves enp1s0f0 enp1s0f1
bond_miimon 100
bond_mode balance-xor
bond_xmit_hash_policy layer2+3
#bond_downdelay 200
#bond_updelay 200

auto vmbr0
iface vmbr0 inet static
address 192.168.1.14
netmask 255.255.255.0
gateway 192.168.1.1
bridge_ports bond0
bridge_stp off
bridge_fd 0
#Fritz!Box 6490 LAN

auto vmbr1
iface vmbr1 inet static
address 192.168.100.1
netmask 255.255.255.0
ovs_type OVSBridge
post-up echo 1 > /proc/sys/net/ipv4/ip_forward
#LOC

auto vmbr2
iface vmbr2 inet static
address 10.0.0.254
netmask 255.255.255.0
ovs_type OVSBridge
#DMZ

auto vmbr3
iface vmbr3 inet manual
bridge_ports eno1
bridge_stp off
bridge_fd 0
#UMstatic

auto vmbr4
iface vmbr4 inet static
address 192.168.2.254
netmask 255.255.255.0
ovs_type OVSBridge
#OPNsense LAN


I can access any client in network 192.168.100.0/24 from 192.168.1.0/24.
However, I cannot access clients in 192.168.2.0/24 from 192.168.1.0/24 although I configured the network bridges vmbr1 and vmbr4 equally.

Running Proxmox Server behind a router (FRITZ!Box) I have ensured that a static route is configured in this router.
This is working according to traceroute check for 192.168.100.0/24
traceroute 192.168.100.9
traceroute to 192.168.100.9 (192.168.100.9), 30 hops max, 60 byte packets
1 net1-fb6490 (192.168.1.1) 3.677 ms 3.642 ms 3.624 ms
2 pc4-svp.whl.meilocal.net (192.168.1.14) 9.676 ms 9.666 ms 9.646 ms
3 vm109-paketcacher.whl.meilocal.net (192.168.100.9) 9.641 ms 9.633 ms 9.614 ms

but it fails for 192.168.2.0/24
traceroute 192.168.2.100
traceroute to 192.168.2.100 (192.168.2.100), 30 hops max, 60 byte packets
1 net1-fb6490 (192.168.1.1) 5.404 ms 5.381 ms 5.369 ms
2 pc4-svp.whl.meilocal.net (192.168.1.14) 5.374 ms 5.362 ms 5.349 ms
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How can I fix this?
 

LnxBil

Famous Member
Feb 21, 2015
6,706
880
163
Saarland, Germany
Without the client network configuration, it is very hard to tell. Have you configured your gateways inside of the guests properly? Please post client network setup.

In generel, you do not have to create multiple vmbr devices, just use VLAN on top of the one bridge. This is just a simple input field in the GUI and it just works.
 

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