danivogel90 opened a new issue, #11174:
URL: https://github.com/apache/cloudstack/issues/11174
### problem
Error **Unable to convert network offering with specified id to network
profile** with
```
cmk create network name="L2 Guest No VLAN" displaytext="L2 Guest SVA"
zoneid=$ZONE_ID networkofferingid=$NETOFF_ID physicalnetworkid=$PHNET_ID
```
Not possible to define the L2 guest network without VLAN.
### versions
CloudStack 4.20.1.0
Ubuntu 24.04.2
Bridge configuration:
```
cloud0 8000.76c30d2f0eda no vnet0
vnet1
cloudbr0 8000.aa2581097bfd no eno3
vnet2
vnet3
vnet4
vnet5
cloudbr1 8000.86803b4ff344 no eno2
cloudbr2 8000.6af97cf2fcad no eno1
```
### The steps to reproduce the bug
[debug-error.txt](https://github.com/user-attachments/files/21159530/debug-error.txt)
1. updateZone - ok
2. create physicalnetwork - ok
3. add traffictype - ok
4. update physicalnetwork - ok
5. create networkoffering - ok
6. update networkoffering - ok
7. updateZone -ok
8. create network - Unable to convert network offering with specified id to
network profile
```
export ZONE_ID=e4a7648a-2847-446d-b6da-43d6f132ab98
export PHNET_ID=fd410e72-d29b-43bb-8b8a-8ac760469594
export NETOFF_ID=34465e19-632e-4e9f-8a46-c79d79c1e758
cmk updateZone id=$ZONE_ID allocationstate=Disabled
cmk create physicalnetwork zoneid=$ZONE_ID name="SVANet"
isolationmethods=None tags=net27
cmk add traffictype physicalnetworkid=$PHNET_ID traffictype=Guest
kvmnetworklabel=cloudbr1
cmk update physicalnetwork id=$PHNET_ID state=Enabled
cmk create networkoffering name="L2 No VLAN" guestiptype=L2
supportedservices="" traffictype=Guest specifyvlan=false ispersistent=true
tags=net27
cmk update networkoffering id=$NETOFF_ID state=Enabled
cmk updateZone id=$ZONE_ID allocationstate=Enabled
cmk create network name="L2 Guest No VLAN" displaytext="L2 Guest SVA"
zoneid=$ZONE_ID networkofferingid=$NETOFF_ID physicalnetworkid=$PHNET_ID
```
### What to do about it?
This will be the simplest network configuration for a typical native KVM
environment. In our case, "flat" clusters and backup networks not routed. How
can the problem be solved?
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