Proxmox and DHCP over vmbr.

[Upgreydd]

Hello,I have a problem with my VE.
I have two physical servers (NodeA and NodeB) with DRBD.
I have 8 phisical ethernet cards in each physical machine (same configuration).
eth0, eth1 -> vmbr0 (VLAN 1 - 192.168.1.0/24)
eth2, eth3 -> vmbr1 (VLAN 2 - 192.168.2.0/24)
eth4, eth5 -> vmbr2 (VLAN 3 - 192.168.3.0/24)
eth6, eth7 -> vmbr3 (VLAN 4 - 192.168.4.0/24)
I created KVM machine with 4 virtio cards. Each card is linked other vmbr:
eth0 (192.168.1.1/24) -> vmbr0
eth1 (192.168.2.1/24) -> vmbr1
eth2 (192.168.3.1/24) -> vmbr2
eth3 (192.168.4.1/24) -> vmbr3
This KVM should work as a DHCP server, but it won't pass DHCP to physical clients in each VLAN.
I've added: "post-up echo 1 > /proc/sys/net/ipv4/conf/eth0/proxy_arp" to each virtio eth0..3 then DHCP works in VLAN1 (eth0) but it won't pass DHCP lease to other VLAN's why?

Please help me.
BR.

 

[Richard]

eth0, eth1 -> vmbr0 (VLAN 1 - 192.168.1.0/24)
eth2, eth3 -> vmbr1 (VLAN 2 - 192.168.2.0/24)
eth4, eth5 -> vmbr2 (VLAN 3 - 192.168.3.0/24)
eth6, eth7 -> vmbr3 (VLAN 4 - 192.168.4.0/24)

2 NICs form always a bond? Are these tagged VLANs?

This KVM should work as a DHCP server, but it won't pass DHCP to physical clients in each VLAN.
I've added: "post-up echo 1 > /proc/sys/net/ipv4/conf/eth0/proxy_arp" to each virtio eth0..3 then DHCP works in VLAN1 (eth0) but it won't pass DHCP lease to other VLAN's why?

There can be a lot of reasons why it´s not working - follow the packets via tcpdump.