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Diffstat (limited to 'doc/guix-cookbook.texi')
| -rw-r--r-- | doc/guix-cookbook.texi | 23 |
1 files changed, 12 insertions, 11 deletions
diff --git a/doc/guix-cookbook.texi b/doc/guix-cookbook.texi index c8bf8c5994..13ff5bf814 100644 --- a/doc/guix-cookbook.texi +++ b/doc/guix-cookbook.texi @@ -25,6 +25,7 @@ Copyright @copyright{} 2022, 2023 Maxim Cournoyer@* Copyright @copyright{} 2023-2024 Ludovic Courtès@* Copyright @copyright{} 2023 Thomas Ieong@* Copyright @copyright{} 2024 Florian Pelz@* +Copyright @copyright{} 2025 45mg@* Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.3 or @@ -3879,29 +3880,29 @@ COMMIT @section Routed network for libvirt @cindex Virtual network bridge interface @cindex networking, virtual bridge -@cindex libvirt, virtual network bridge +@cindex libvirt, virtual network switch If the machine hosting your virtual machines is connected wirelessly to the network, you won't be able to use a true network bridge as explained in the preceding section (@pxref{Network bridge for QEMU}). In this -case, the next best option is to use a @emph{virtual} bridge with static -routing and to configure a libvirt-powered virtual machine to use it -(via the @command{virt-manager} GUI for example). This is similar to -the default mode of operation of QEMU/libvirt, except that instead of -using @abbr{NAT, Network Address Translation}, it relies on static -routes to join the @abbr{VM, virtual machine} IP address to the +case, the next best option is to use a @emph{virtual network switch} +with static routing and to configure a libvirt-powered virtual machine +to use it (via the @command{virt-manager} GUI for example). This is +similar to the default mode of operation of QEMU/libvirt, except that +instead of using @abbr{NAT, Network Address Translation}, it relies on +static routes to join the @abbr{VM, virtual machine} IP address to the @abbr{LAN, local area network}. This provides two-way connectivity to and from the virtual machine, which is needed for exposing services hosted on the virtual machine. -@subsection Creating a virtual network bridge +@subsection Creating a virtual network switch -A virtual network bridge consists of a few components/configurations, +A virtual network switch consists of a few components/configurations, such as a @abbr{TUN, network tunnel} interface, DHCP server (dnsmasq) and firewall rules (iptables). The @command{virsh} command, provided by the @code{libvirt} package, makes it very easy to create a virtual -bridge. You first need to choose a network subnet for your virtual -bridge; if your home LAN is in the @samp{192.168.1.0/24} network, you +switch. You first need to choose a network subnet for your virtual +switch; if your home LAN is in the @samp{192.168.1.0/24} network, you could opt to use e.g.@: @samp{192.168.2.0/24}. Define an XML file, e.g.@: @file{/tmp/virbr0.xml}, containing the following: |