Networking

Commands:

User Networking
# qemu-system-x86_64 -name LPIC3-Ubuntu -enable-kvm -hda Ubuntu-Server.qcow2 -m 2024 -smp cpus=2 -netdev user,id=mynet0,net=192.168.80.0/24,dhcpstart=192.168.80.55,hostfwd=tcp::2222-:22 -device e1000,netdev=mynet0

Virtual Private Bridge
# qemu-system-x86_64 -name LPIC3-Ubuntu -enable-kvm -hda Ubuntu-Server.qcow2 -m 2024 -smp cpus=2 -netdev tap,id=br0 -device e1000,netdev=br0,mac=DE:AD:BE:EF:1A:24 &

Create a MAC
# printf 'DE:AD:BE:EF:%02X:%02X\n' $((RANDOM%256)) $((RANDOM%256))