Sriov card [one.template.instantiate] Error allocating a new virtual machine template. Cannot get IP/MAC lease from virtual network 2

Hello
Opennebula version : 6.6
hypervisor OS: debian 11 + kvm

I try to create a VM connected to sriov NIC.
I can see the pci

onevnet show 2
VIRTUAL NETWORK 2 INFORMATION
ID                       : 2
NAME                     : vntemplatesriov
USER                     : oneadmin
GROUP                    : oneadmin
LOCK                     : None
CLUSTERS                 : 0
BRIDGE                   : tobeignored1
STATE                    : READY
VN_MAD                   : dummy
PHYSICAL DEVICE          : eth0
AUTOMATIC VLAN ID        : NO
AUTOMATIC OUTER VLAN ID  : NO
USED LEASES              : 0

PERMISSIONS
OWNER                    : um-
GROUP                    : ---
OTHER                    : ---

VIRTUAL NETWORK TEMPLATE
BRIDGE="tobeignored1"
BRIDGE_TYPE="linux"
OUTER_VLAN_ID=""
PCI=[ CLASS="0200", DEVICE="8090", NETWORK="srviov_passthrough", TYPE="NIC", VENDOR="1077" ]
PHYDEV="eth0"
VLAN_ID=""
VN_MAD="dummy"

ADDRESS RANGE POOL

LEASES
AR  OWNER        MAC    IP PORT_FORWARD   IP6

VIRTUAL ROUTERS

VIRTUAL MACHINES
UPDATED                  :
OUTDATED                 :
ERROR                    :
PCI DEVICES

I can see PT in onehost

   VM ADDR    TYPE           NAME
      45:02.0 1077:8090:0200 FastLinQ QL41000 Series Gigabit Ethernet Controlle
      45:02.1 1077:8090:0200 FastLinQ QL41000 Series Gigabit Ethernet Controlle
      45:02.2 1077:8090:0200 FastLinQ QL41000 Series Gigabit Ethernet Controlle
      45:02.3 1077:8090:0200 FastLinQ QL41000 Series Gigabit Ethernet Controlle
      45:02.4 1077:8090:0200 FastLinQ QL41000 Series Gigabit Ethernet Controlle
      45:02.5 1077:8090:0200 FastLinQ QL41000 Series Gigabit Ethernet Controlle
      45:02.6 1077:8090:0200 FastLinQ QL41000 Series Gigabit Ethernet Controlle
      45:02.7 1077:8090:0200 FastLinQ QL41000 Series Gigabit Ethernet Controlle
      45:0e.0 1077:8090:0200 FastLinQ QL41000 Series Gigabit Ethernet Controlle
      45:0e.1 1077:8090:0200 FastLinQ QL41000 Series Gigabit Ethernet Controlle
      45:0e.2 1077:8090:0200 FastLinQ QL41000 Series Gigabit Ethernet Controlle
      45:0e.3 1077:8090:0200 FastLinQ QL41000 Series Gigabit Ethernet Controlle
      45:0e.4 1077:8090:0200 FastLinQ QL41000 Series Gigabit Ethernet Controlle
      45:0e.5 1077:8090:0200 FastLinQ QL41000 Series Gigabit Ethernet Controlle
      45:0e.6 1077:8090:0200 FastLinQ QL41000 Series Gigabit Ethernet Controlle
      45:0e.7 1077:8090:0200 FastLinQ QL41000 Series Gigabit Ethernet Controlle

but finally get this error "Error allocating a new virtual machine template. Cannot get IP/MAC lease from virtual network 2.

thanks for your help

If I create a range I can instantiate the VM but another error has occured in log:
Cannot get interface MTU on ‘tobeignored1’
I create a bridge named “tobeignored1” and a NIC appeared into the VM. But ping to the LAN failed.
I can see
18: tobeignored1: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000
link/ether 76:95:35:3a:f7:ee brd ff:ff:ff:ff:ff:ff
19: one-17-0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master tobeignored1 state UNKNOWN group default qlen 1000
link/ether fe:6c:47:f8:aa:51 brd ff:ff:ff:ff:ff:ff
inet6 fe80::fc6c:47ff:fef8:aa51/64 scope link
I suppose it has connect the VM NIC to the bridge “tobeignored1” but the real problem is it asks a MTU to the dummy bridge.