Network devices are somewhat special, since besides being able to add them the standard way,
there's a much easier one to configure them through the -net nic parameter.
Also, please note that -device doesn't suppress the default configuration, so it might not do what you intend.
Adding a card
editSimply specifying -net nic on the command line adds an interface.
You can select the hardware being emulated using the model modifier.
Example:
qemu -net nic,model=ne2k_pci ...
Network card models
editFor PC emulation
| Model | Bus | Speed | Description |
|---|---|---|---|
| e1000 | PCI | 10/100/1000Mb/s | Intel 82540em / PRO/1000 |
| i82551 | PCI | 10/100Mb/s | Intel 10/100 Mbps Fast Ethernet |
| i82557b | PCI | 10/100Mb/s | Intel 10/100 Mbps Fast Ethernet |
| i82559er | PCI | 10/100Mb/s | Intel 10/100 Mbps Fast Ethernet |
| ne2k_pci | PCI | 10Mb/s | RTL8029 - NE2000 PCI |
| ne2k_isa | ISA | 10Mb/s | NE2000 Compatible |
| pcnet | PCI | 10/100Mb/s | AMD PCnet FAST III Ethernet |
| rtl8139 | PCI | 10/100Mb/s | Realtek Fast Ethernet |
| virtio | PCI | 1Gb/s | Virtual High Performance Ethernet card (see Virtio) |
qemu-system-<arch> -net nic,model=<model>
In this command, <arch> and <model> should be replaced with the appropriate architecture and model you intend to use.
Others emulated architectures
You have to launch this command to list emulated network card