pkt-gen test through vlan beetween real machines over physical network to check first panic:
```
1. Machine
# ifconfig vlan create vlan10 vlandev ix0 up
vlan0
# pkt-gen -i vlan0 -f tx
2. Machine
# ifconfig vlan create vlan10 vlandev ix0 up
vlan0
# pkt-gen -i vlan0 -f rx
```
pkt-gen test beetween VM's on same machine to check the second panic:
```
VM1:
# ifconfig vlan create vlan10 vlandev vtnet0 up
vlan0
# pkt-gen -i vlan0 -f tx
VM2:
# ifconfig vlan create vlan10 vlandev vtnet0 up
vlan0
# pkt-gen -i vlan0 -f rx
```