-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1 iQEcBAABAgAGBQJavbPWAAoJEO8Ells5jWIRC/IH/ieddmow/vzIPzxuNdrtBQjP GQ+MAxgrOf/v31Sj3W+LhxURZ2gBhcF7u/NNDVEVO+rJ9hKltVRzaoHOXHU9yWmm L4gl6uFeU6Hl8gpcknEcnKGt0MdUvADATW6Jkb+Zso0emaOc4olMM7VaaxyqR7Fq R3SS3Wbf4JpGG+GuICuSoLIrK3drVZdCleq7ppwOIfrE5LYtZMMrtVEJaAy5kdQJ ei6tr8aRjg3kFZYb0TA+VVClhd7wdcYushLYqOpxn+/TNfPI0FWIJbLIy0GpUmkC bMVxEh23wj8e4bdQtcELUK2L+fbGPKtxgeLh7kMdjYc/a/v0DJZixHFuqzx8Mq8= =2Kf1 -----END PGP SIGNATURE----- Merge remote-tracking branch 'remotes/jasowang/tags/net-pull-request' into staging # gpg: Signature made Fri 30 Mar 2018 04:49:42 BST # gpg: using RSA key EF04965B398D6211 # gpg: Good signature from "Jason Wang (Jason Wang on RedHat) <jasowang@redhat.com>" # gpg: WARNING: This key is not certified with sufficiently trusted signatures! # gpg: It is not certain that the signature belongs to the owner. # Primary key fingerprint: 215D 46F4 8246 689E C77F 3562 EF04 965B 398D 6211 * remotes/jasowang/tags/net-pull-request: qemu-doc: Rework the network options chapter to make "-net" less prominent Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Peter Maydell
commit
b60d667d3d
189
qemu-options.hx
189
qemu-options.hx
@ -2048,41 +2048,40 @@ DEF("net", HAS_ARG, QEMU_OPTION_net,
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" old way to initialize a host network interface\n"
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" (use the -netdev option if possible instead)\n", QEMU_ARCH_ALL)
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STEXI
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@item -net nic[,vlan=@var{n}][,netdev=@var{nd}][,macaddr=@var{mac}][,model=@var{type}] [,name=@var{name}][,addr=@var{addr}][,vectors=@var{v}]
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@findex -net
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Configure or create an on-board (or machine default) Network Interface Card
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(NIC) and connect it either to VLAN @var{n} (@var{n} = 0 is the default), or
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to the netdev @var{nd}. The NIC is an e1000 by default on the PC
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target. Optionally, the MAC address can be changed to @var{mac}, the
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device address set to @var{addr} (PCI cards only),
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and a @var{name} can be assigned for use in monitor commands.
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Optionally, for PCI cards, you can specify the number @var{v} of MSI-X vectors
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that the card should have; this option currently only affects virtio cards; set
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@var{v} = 0 to disable MSI-X. If no @option{-net} option is specified, a single
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NIC is created. QEMU can emulate several different models of network card.
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Valid values for @var{type} are
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@code{virtio}, @code{i82551}, @code{i82557b}, @code{i82559er},
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@code{ne2k_pci}, @code{ne2k_isa}, @code{pcnet}, @code{rtl8139},
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@code{e1000}, @code{smc91c111}, @code{lance} and @code{mcf_fec}.
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Not all devices are supported on all targets. Use @code{-net nic,model=help}
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for a list of available devices for your target.
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@item -nic [tap|bridge|user|l2tpv3|vde|netmap|vhost-user|socket][,...][,mac=macaddr][,model=mn]
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@findex -nic
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This option is a shortcut for configuring both the on-board (default) guest
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NIC hardware and the host network backend in one go. The host backend options
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are the same as with the corresponding @option{-netdev} options below.
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The guest NIC model can be set with @option{model=@var{modelname}}.
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Use @option{model=help} to list the available device types.
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The hardware MAC address can be set with @option{mac=@var{macaddr}}.
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The following two example do exactly the same, to show how @option{-nic} can
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be used to shorten the command line length (note that the e1000 is the default
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on i386, so the @option{model=e1000} parameter could even be omitted here, too):
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@example
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qemu-system-i386 -netdev user,id=n1,ipv6=off -device e1000,netdev=n1,mac=52:54:98:76:54:32
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qemu-system-i386 -nic user,ipv6=off,model=e1000,mac=52:54:98:76:54:32
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@end example
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@item -nic none
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Indicate that no network devices should be configured. It is used to override
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the default configuration (default NIC with ``user'' host network backend)
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which is activated if no other networking options are provided.
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@item -netdev user,id=@var{id}[,@var{option}][,@var{option}][,...]
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@findex -netdev
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@item -net user[,@var{option}][,@var{option}][,...]
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Use the user mode network stack which requires no administrator
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Configure user mode host network backend which requires no administrator
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privilege to run. Valid options are:
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@table @option
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@item vlan=@var{n}
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Connect user mode stack to VLAN @var{n} (@var{n} = 0 is the default).
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@item id=@var{id}
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@itemx name=@var{name}
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Assign symbolic name for use in monitor commands.
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@option{ipv4} and @option{ipv6} specify that either IPv4 or IPv6 must
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be enabled. If neither is specified both protocols are enabled.
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@item ipv4=on|off and ipv6=on|off
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Specify that either IPv4 or IPv6 must be enabled. If neither is specified
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both protocols are enabled.
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@item net=@var{addr}[/@var{mask}]
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Set IP network address the guest will see. Optionally specify the netmask,
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@ -2134,7 +2133,7 @@ can not be resolved.
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Example:
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@example
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qemu -net user,dnssearch=mgmt.example.org,dnssearch=example.org [...]
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qemu-system-i386 -nic user,dnssearch=mgmt.example.org,dnssearch=example.org
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@end example
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@item tftp=@var{dir}
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@ -2150,7 +2149,8 @@ a guest from a local directory.
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Example (using pxelinux):
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@example
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qemu-system-i386 -hda linux.img -boot n -net user,tftp=/path/to/tftp/files,bootfile=/pxelinux.0
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qemu-system-i386 -hda linux.img -boot n -device e1000,netdev=n1 \
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-netdev user,id=n1,tftp=/path/to/tftp/files,bootfile=/pxelinux.0
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@end example
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@item smb=@var{dir}[,smbserver=@var{addr}]
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@ -2169,8 +2169,6 @@ or @file{C:\WINNT\SYSTEM32\DRIVERS\ETC\LMHOSTS} (Windows NT/2000).
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Then @file{@var{dir}} can be accessed in @file{\\smbserver\qemu}.
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Note that a SAMBA server must be installed on the host OS.
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QEMU was tested successfully with smbd versions from Red Hat 9,
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Fedora Core 3 and OpenSUSE 11.x.
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@item hostfwd=[tcp|udp]:[@var{hostaddr}]:@var{hostport}-[@var{guestaddr}]:@var{guestport}
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Redirect incoming TCP or UDP connections to the host port @var{hostport} to
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@ -2185,7 +2183,7 @@ screen 0, use the following:
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@example
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# on the host
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qemu-system-i386 -net user,hostfwd=tcp:127.0.0.1:6001-:6000 [...]
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qemu-system-i386 -nic user,hostfwd=tcp:127.0.0.1:6001-:6000
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# this host xterm should open in the guest X11 server
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xterm -display :1
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@end example
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@ -2195,7 +2193,7 @@ the guest, use the following:
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@example
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# on the host
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qemu-system-i386 -net user,hostfwd=tcp::5555-:23 [...]
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qemu-system-i386 -nic user,hostfwd=tcp::5555-:23
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telnet localhost 5555
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@end example
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@ -2214,7 +2212,7 @@ lifetime, like in the following example:
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@example
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# open 10.10.1.1:4321 on bootup, connect 10.0.2.100:1234 to it whenever
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# the guest accesses it
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qemu -net user,guestfwd=tcp:10.0.2.100:1234-tcp:10.10.1.1:4321 [...]
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qemu-system-i386 -nic user,guestfwd=tcp:10.0.2.100:1234-tcp:10.10.1.1:4321
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@end example
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Or you can execute a command on every TCP connection established by the guest,
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@ -2223,7 +2221,7 @@ so that QEMU behaves similar to an inetd process for that virtual server:
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@example
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# call "netcat 10.10.1.1 4321" on every TCP connection to 10.0.2.100:1234
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# and connect the TCP stream to its stdin/stdout
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qemu -net 'user,guestfwd=tcp:10.0.2.100:1234-cmd:netcat 10.10.1.1 4321'
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qemu-system-i386 -nic 'user,id=n1,guestfwd=tcp:10.0.2.100:1234-cmd:netcat 10.10.1.1 4321'
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@end example
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@end table
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@ -2234,8 +2232,7 @@ syntax gives undefined results. Their use for new applications is discouraged
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as they will be removed from future versions.
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@item -netdev tap,id=@var{id}[,fd=@var{h}][,ifname=@var{name}][,script=@var{file}][,downscript=@var{dfile}][,br=@var{bridge}][,helper=@var{helper}]
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@itemx -net tap[,vlan=@var{n}][,name=@var{name}][,fd=@var{h}][,ifname=@var{name}][,script=@var{file}][,downscript=@var{dfile}][,br=@var{bridge}][,helper=@var{helper}]
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Connect the host TAP network interface @var{name} to VLAN @var{n}.
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Configure a host TAP network backend with ID @var{id}.
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Use the network script @var{file} to configure it and the network script
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@var{dfile} to deconfigure it. If @var{name} is not provided, the OS
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@ -2256,7 +2253,7 @@ Examples:
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@example
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#launch a QEMU instance with the default network script
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qemu-system-i386 linux.img -net nic -net tap
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qemu-system-i386 linux.img -nic tap
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@end example
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@example
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@ -2270,12 +2267,11 @@ qemu-system-i386 linux.img \
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@example
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#launch a QEMU instance with the default network helper to
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#connect a TAP device to bridge br0
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qemu-system-i386 linux.img \
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-net nic -net tap,"helper=/path/to/qemu-bridge-helper"
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qemu-system-i386 linux.img -device virtio-net-pci,netdev=n1 \
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-netdev tap,id=n1,"helper=/path/to/qemu-bridge-helper"
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@end example
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@item -netdev bridge,id=@var{id}[,br=@var{bridge}][,helper=@var{helper}]
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@itemx -net bridge[,vlan=@var{n}][,name=@var{name}][,br=@var{bridge}][,helper=@var{helper}]
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Connect a host TAP network interface to a host bridge device.
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Use the network helper @var{helper} to configure the TAP interface and
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@ -2288,21 +2284,20 @@ Examples:
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@example
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#launch a QEMU instance with the default network helper to
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#connect a TAP device to bridge br0
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qemu-system-i386 linux.img -net bridge -net nic,model=virtio
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qemu-system-i386 linux.img -netdev bridge,id=n1 -device virtio-net,netdev=n1
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@end example
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@example
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#launch a QEMU instance with the default network helper to
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#connect a TAP device to bridge qemubr0
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qemu-system-i386 linux.img -net bridge,br=qemubr0 -net nic,model=virtio
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qemu-system-i386 linux.img -netdev bridge,br=qemubr0,id=n1 -device virtio-net,netdev=n1
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@end example
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@item -netdev socket,id=@var{id}[,fd=@var{h}][,listen=[@var{host}]:@var{port}][,connect=@var{host}:@var{port}]
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@itemx -net socket[,vlan=@var{n}][,name=@var{name}][,fd=@var{h}] [,listen=[@var{host}]:@var{port}][,connect=@var{host}:@var{port}]
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Connect the VLAN @var{n} to a remote VLAN in another QEMU virtual
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machine using a TCP socket connection. If @option{listen} is
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specified, QEMU waits for incoming connections on @var{port}
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This host network backend can be used to connect the guest's network to
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another QEMU virtual machine using a TCP socket connection. If @option{listen}
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is specified, QEMU waits for incoming connections on @var{port}
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(@var{host} is optional). @option{connect} is used to connect to
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another QEMU instance using the @option{listen} option. @option{fd}=@var{h}
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specifies an already opened TCP socket.
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@ -2311,21 +2306,19 @@ Example:
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@example
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# launch a first QEMU instance
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qemu-system-i386 linux.img \
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-net nic,macaddr=52:54:00:12:34:56 \
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-net socket,listen=:1234
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# connect the VLAN 0 of this instance to the VLAN 0
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# of the first instance
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-device e1000,netdev=n1,mac=52:54:00:12:34:56 \
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-netdev socket,id=n1,listen=:1234
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# connect the network of this instance to the network of the first instance
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qemu-system-i386 linux.img \
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-net nic,macaddr=52:54:00:12:34:57 \
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-net socket,connect=127.0.0.1:1234
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-device e1000,netdev=n2,mac=52:54:00:12:34:57 \
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-netdev socket,id=n2,connect=127.0.0.1:1234
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@end example
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@item -netdev socket,id=@var{id}[,fd=@var{h}][,mcast=@var{maddr}:@var{port}[,localaddr=@var{addr}]]
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@itemx -net socket[,vlan=@var{n}][,name=@var{name}][,fd=@var{h}][,mcast=@var{maddr}:@var{port}[,localaddr=@var{addr}]]
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Create a VLAN @var{n} shared with another QEMU virtual
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machines using a UDP multicast socket, effectively making a bus for
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every QEMU with same multicast address @var{maddr} and @var{port}.
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Configure a socket host network backend to share the guest's network traffic
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with another QEMU virtual machines using a UDP multicast socket, effectively
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making a bus for every QEMU with same multicast address @var{maddr} and @var{port}.
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NOTES:
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@enumerate
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@item
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@ -2342,25 +2335,24 @@ Example:
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@example
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# launch one QEMU instance
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qemu-system-i386 linux.img \
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-net nic,macaddr=52:54:00:12:34:56 \
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-net socket,mcast=230.0.0.1:1234
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-device e1000,netdev=n1,mac=52:54:00:12:34:56 \
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-netdev socket,id=n1,mcast=230.0.0.1:1234
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# launch another QEMU instance on same "bus"
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qemu-system-i386 linux.img \
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-net nic,macaddr=52:54:00:12:34:57 \
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-net socket,mcast=230.0.0.1:1234
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-device e1000,netdev=n2,mac=52:54:00:12:34:57 \
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-netdev socket,id=n2,mcast=230.0.0.1:1234
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# launch yet another QEMU instance on same "bus"
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qemu-system-i386 linux.img \
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-net nic,macaddr=52:54:00:12:34:58 \
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-net socket,mcast=230.0.0.1:1234
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-device e1000,netdev=n3,macaddr=52:54:00:12:34:58 \
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-netdev socket,id=n3,mcast=230.0.0.1:1234
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@end example
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Example (User Mode Linux compat.):
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@example
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# launch QEMU instance (note mcast address selected
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# is UML's default)
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# launch QEMU instance (note mcast address selected is UML's default)
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qemu-system-i386 linux.img \
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-net nic,macaddr=52:54:00:12:34:56 \
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-net socket,mcast=239.192.168.1:1102
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-device e1000,netdev=n1,mac=52:54:00:12:34:56 \
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-netdev socket,id=n1,mcast=239.192.168.1:1102
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# launch UML
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/path/to/linux ubd0=/path/to/root_fs eth0=mcast
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@end example
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@ -2368,14 +2360,13 @@ qemu-system-i386 linux.img \
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Example (send packets from host's 1.2.3.4):
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@example
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qemu-system-i386 linux.img \
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-net nic,macaddr=52:54:00:12:34:56 \
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-net socket,mcast=239.192.168.1:1102,localaddr=1.2.3.4
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-device e1000,netdev=n1,mac=52:54:00:12:34:56 \
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-netdev socket,id=n1,mcast=239.192.168.1:1102,localaddr=1.2.3.4
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@end example
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@item -netdev l2tpv3,id=@var{id},src=@var{srcaddr},dst=@var{dstaddr}[,srcport=@var{srcport}][,dstport=@var{dstport}],txsession=@var{txsession}[,rxsession=@var{rxsession}][,ipv6][,udp][,cookie64][,counter][,pincounter][,txcookie=@var{txcookie}][,rxcookie=@var{rxcookie}][,offset=@var{offset}]
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@itemx -net l2tpv3[,vlan=@var{n}][,name=@var{name}],src=@var{srcaddr},dst=@var{dstaddr}[,srcport=@var{srcport}][,dstport=@var{dstport}],txsession=@var{txsession}[,rxsession=@var{rxsession}][,ipv6][,udp][,cookie64][,counter][,pincounter][,txcookie=@var{txcookie}][,rxcookie=@var{rxcookie}][,offset=@var{offset}]
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Connect VLAN @var{n} to L2TPv3 pseudowire. L2TPv3 (RFC3391) is a popular
|
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protocol to transport Ethernet (and other Layer 2) data frames between
|
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Configure a L2TPv3 pseudowire host network backend. L2TPv3 (RFC3391) is a
|
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popular protocol to transport Ethernet (and other Layer 2) data frames between
|
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two systems. It is present in routers, firewalls and the Linux kernel
|
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(from version 3.3 onwards).
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||||
@ -2428,14 +2419,13 @@ brctl addif br-lan vmtunnel0
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# on 4.3.2.1
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# launch QEMU instance - if your network has reorder or is very lossy add ,pincounter
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qemu-system-i386 linux.img -net nic -net l2tpv3,src=4.2.3.1,dst=1.2.3.4,udp,srcport=16384,dstport=16384,rxsession=0xffffffff,txsession=0xffffffff,counter
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qemu-system-i386 linux.img -device e1000,netdev=n1 \
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-netdev l2tpv3,id=n1,src=4.2.3.1,dst=1.2.3.4,udp,srcport=16384,dstport=16384,rxsession=0xffffffff,txsession=0xffffffff,counter
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@end example
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||||
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@item -netdev vde,id=@var{id}[,sock=@var{socketpath}][,port=@var{n}][,group=@var{groupname}][,mode=@var{octalmode}]
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@itemx -net vde[,vlan=@var{n}][,name=@var{name}][,sock=@var{socketpath}] [,port=@var{n}][,group=@var{groupname}][,mode=@var{octalmode}]
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Connect VLAN @var{n} to PORT @var{n} of a vde switch running on host and
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Configure VDE backend to connect to PORT @var{n} of a vde switch running on host and
|
||||
listening for incoming connections on @var{socketpath}. Use GROUP @var{groupname}
|
||||
and MODE @var{octalmode} to change default ownership and permissions for
|
||||
communication port. This option is only available if QEMU has been compiled
|
||||
@ -2446,19 +2436,9 @@ Example:
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||||
# launch vde switch
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||||
vde_switch -F -sock /tmp/myswitch
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# launch QEMU instance
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qemu-system-i386 linux.img -net nic -net vde,sock=/tmp/myswitch
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qemu-system-i386 linux.img -nic vde,sock=/tmp/myswitch
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@end example
|
||||
|
||||
@item -netdev hubport,id=@var{id},hubid=@var{hubid}[,netdev=@var{nd}]
|
||||
|
||||
Create a hub port on QEMU "vlan" @var{hubid}.
|
||||
|
||||
The hubport netdev lets you connect a NIC to a QEMU "vlan" instead of a single
|
||||
netdev. @code{-net} and @code{-device} with parameter @option{vlan} create the
|
||||
required hub automatically. Alternatively, you can also connect the hubport
|
||||
to another netdev with ID @var{nd} by using the @option{netdev=@var{nd}}
|
||||
option.
|
||||
|
||||
@item -netdev vhost-user,chardev=@var{id}[,vhostforce=on|off][,queues=n]
|
||||
|
||||
Establish a vhost-user netdev, backed by a chardev @var{id}. The chardev should
|
||||
@ -2477,17 +2457,36 @@ qemu -m 512 -object memory-backend-file,id=mem,size=512M,mem-path=/hugetlbfs,sha
|
||||
-device virtio-net-pci,netdev=net0
|
||||
@end example
|
||||
|
||||
@item --nic [tap|bridge|user|l2tpv3|vde|netmap|vhost-user|socket][,...][,mac=macaddr]
|
||||
@item -netdev hubport,id=@var{id},hubid=@var{hubid}[,netdev=@var{nd}]
|
||||
|
||||
This option is a shortcut for setting both, the on-board (default) guest NIC
|
||||
hardware and the host network backend in one go. The host backend options are
|
||||
the same as with the corresponding @option{--netdev} option. The guest NIC
|
||||
hardware MAC address can be set with @option{mac=@var{macaddr}}.
|
||||
Create a hub port on the emulated hub with ID @var{hubid}.
|
||||
|
||||
@item --nic none
|
||||
Indicate that no network devices should be configured. It is used to override
|
||||
the default configuration (default NIC with @option{--net user} backend) which
|
||||
is activated if no other networking options are provided.
|
||||
The hubport netdev lets you connect a NIC to a QEMU emulated hub instead of a
|
||||
single netdev. @code{-net} and @code{-device} with the parameter @option{vlan}
|
||||
(deprecated), or @code{-nic hubport} can also be used to connect a
|
||||
network device or a NIC to a hub. Alternatively, you can also connect the
|
||||
hubport to another netdev with ID @var{nd} by using the @option{netdev=@var{nd}}
|
||||
option.
|
||||
|
||||
@item -net nic[,vlan=@var{n}][,netdev=@var{nd}][,macaddr=@var{mac}][,model=@var{type}] [,name=@var{name}][,addr=@var{addr}][,vectors=@var{v}]
|
||||
@findex -net
|
||||
Legacy option to configure or create an on-board (or machine default) Network
|
||||
Interface Card(NIC) and connect it either to the emulated hub port ("vlan")
|
||||
with number @var{n} (@var{n} = 0 is the default), or to the netdev @var{nd}.
|
||||
The NIC is an e1000 by default on the PC target. Optionally, the MAC address
|
||||
can be changed to @var{mac}, the device address set to @var{addr} (PCI cards
|
||||
only), and a @var{name} can be assigned for use in monitor commands.
|
||||
Optionally, for PCI cards, you can specify the number @var{v} of MSI-X vectors
|
||||
that the card should have; this option currently only affects virtio cards; set
|
||||
@var{v} = 0 to disable MSI-X. If no @option{-net} option is specified, a single
|
||||
NIC is created. QEMU can emulate several different models of network card.
|
||||
Use @code{-net nic,model=help} for a list of available devices for your target.
|
||||
|
||||
@item -net user|tap|bridge|socket|l2tpv3|vde[,...][,vlan=@var{n}][,name=@var{name}]
|
||||
Configure a host network backend (with the options corresponding to the same
|
||||
@option{-netdev} option) and connect it to the emulated hub ("vlan") with the
|
||||
number @var{n} (default is number 0). Use @var{name} to specify the name of the
|
||||
hub port.
|
||||
ETEXI
|
||||
|
||||
STEXI
|
||||
|
||||
Loading…
Reference in New Issue
Block a user