vSwitch0
vmnic0 : LAN
Port VMKernel, vmk0 : 172.20.10.10 (the IP my VM can't ping)
VM Network LAN1 : All VMs in LAN are here
vSwitch1
vmnic2 : DMZ
vSwitch2
vmnic1 : not used for the moment
PRTG in the VM can ping everything in the lan (routeur, switch, VMs on the same host)
Only 1 ESXi host for the moment.