Using other types of networking (non-user mode) involves too much of
configuration and used features. I know less about networking stuff,
unfortunately and have no experience to configure it. It especially is harder
because i need only few ports being forwarded to Virtual Machines (ports are
unique so i bind them to all interfaces), others should be available for host
machine only. I am not using iptables, netfilter and conntrack right now.
Was hoping such thing exists, because at other parts qemu is rather
configurable.
Current qemu network configuration looks like:
-netdev user,id=netdev1,hostfwd=tcp::6110-:6110 -device
rtl8139,netdev=netdev1,id=netdev1