ovs_bridge for first interface + DHCP for VMs?


New Member
Apr 17, 2022
Hi there,

I am really new to all of this so excuse the question, if too stupid :)

I want to use OVS and I understood that PVE needs a static IP. I replaced the basic linux bridge with OVS and it works just fine.

/etc/network/interfaces (part of)

auto lo
iface lo inet loopback

auto enp9s0
iface enp9s0 inet manual
        ovs_type OVSPort
        ovs_bridge vmbr0
        ovs_mtu 1500
        ovs_options vlan_mode=native-untagged tag=1

auto vlan1
iface vlan1 inet static
        ovs_type OVSIntPort
        ovs_bridge vmbr0
        ovs_mtu 1500
        ovs_options tag=1
auto vmbr0
iface vmbr0 inet manual
        ovs_type OVSBridge
        ovs_ports enp9s0 vlan1 vlan2
        ovs_mtu 1500

Now, I'd like to use vlan2 for my pfSense WAN port and as such I want to get a DHCP from the same modem ( - fritzbox, yes). I thought I could just add

auto vlan2
iface vlan2 inet dhcp
        ovs_type OVSIntPort
        ovs_bridge vmbr0
        ovs_mtu 1500
        ovs_options tag=2

but I don't get an IP from the modem. What am I doing wrong?
interesting about the vlan. never seen a modem giving vlan. Moslty, what do work well is the default bridge as prox need the gui and management ip and then you do extra internal vlan that do link to the output of your vm. no ip set, no dhcp.. the vm do that.


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