Source: qemu Version: 1:5.2+dfsg-11+deb11u2 Severity: normal Dear Maintainer,
Quoth qemu-system-x86_64 (and -s390x):
-netdev
tap,id=id[,fd=h][,ifname=name][,script=file][,downscript=dfile][,br=bridge][,helper=helper]
Configure a host TAP network backend with ID id.
Use the network script file to configure it and the network
script dfile to deconfigure it. If name is not provided, the OS automatically
provides one.
The default network configure script is /etc/qemu-ifup and the
default network deconfigure script is /etc/qemu-ifdown. Use script=no or
downscript=no to
disable script execution.
If running QEMU as an unprivileged user, use the network helper
to configure the TAP interface and attach it to the bridge. The default
network helper
executable is /path/to/qemu-bridge-helper and the default bridge
device is br0.
fd=h can be used to specify the handle of an already opened host
TAP interface.
Examples:
#launch a QEMU instance with the default network script
qemu-system-x86_64 linux.img -nic tap
#launch a QEMU instance with two NICs, each one connected
#to a TAP device
qemu-system-x86_64 linux.img \
-netdev tap,id=nd0,ifname=tap0 -device
e1000,netdev=nd0 \
-netdev tap,id=nd1,ifname=tap1 -device
rtl8139,netdev=nd1
#launch a QEMU instance with the default network helper to
#connect a TAP device to bridge br0
qemu-system-x86_64 linux.img -device virtio-net-pci,netdev=n1 \
-netdev tap,id=n1,"helper=/path/to/qemu-bridge-helper"
-netdev bridge,id=id[,br=bridge][,helper=helper]
Connect a host TAP network interface to a host bridge device.
Use the network helper helper to configure the TAP
interface and attach it to the bridge. The default network helper
executable is
/path/to/qemu-bridge-helper and the default bridge device is br0.
Examples:
#launch a QEMU instance with the default network helper to
#connect a TAP device to bridge br0
qemu-system-x86_64 linux.img -netdev bridge,id=n1 -device
virtio-net,netdev=n1
#launch a QEMU instance with the default network helper to
#connect a TAP device to bridge qemubr0
qemu-system-x86_64 linux.img -netdev bridge,br=qemubr0,id=n1
-device virtio-net,netdev=n1
And, well, if the default executable is /path/to/qemu-bridge-helper then
it's broken, because that's /usr/lib/qemu/qemu-bridge-helper,
according to dpkg -S.
If it's not then the manual's broken, because it doesn't match the
actual path.
Best,
наб
-- System Information:
Debian Release: 11.6
APT prefers stable-updates
APT policy: (500, 'stable-updates'), (500, 'stable-security'), (500,
'stable-debug'), (500, 'stable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386
Kernel: Linux 5.10.0-20-amd64 (SMP w/24 CPU threads)
Kernel taint flags: TAINT_PROPRIETARY_MODULE, TAINT_FIRMWARE_WORKAROUND,
TAINT_OOT_MODULE, TAINT_UNSIGNED_MODULE
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8),
LANGUAGE=en_GB:en
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled
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