-Network Configuration
----------------------
-
-{pve} uses a bridged networking model. Each host can have up to 4094
-bridges. Bridges are like physical network switches implemented in
-software. All VMs can share a single bridge, as if
-virtual network cables from each guest were all plugged into the same
-switch. But you can also create multiple bridges to separate network
-domains.
-
-For connecting VMs to the outside world, bridges are attached to
-physical network cards. For further flexibility, you can configure
-VLANs (IEEE 802.1q) and network bonding, also known as "link
-aggregation". That way it is possible to build complex and flexible
-virtual networks.
-
-Debian traditionally uses the 'ifup' and 'ifdown' commands to
-configure the network. The file '/etc/network/interfaces' contains the
-whole network setup. Please refer to to manual page ('man interfaces')
-for a complete format description.
-
-NOTE: {pve} does not write changes directly to
-'/etc/network/interfaces'. Instead, we write into a temporary file
-called '/etc/network/interfaces.new', and commit those changes when
-you reboot the node.
-
-It is worth mentioning that you can directly edit the configuration
-file. All {pve} tools tries hard to keep such direct user
-modifications. Using the GUI is still preferable, because it
-protect you from errors.
-
-Naming Conventions
-~~~~~~~~~~~~~~~~~~
-
-We currently use the following naming conventions for device names:
-
-* Ethernet devices: eth[N], where 0 ≤ N (`eth0`, `eth1`, ...)
-
-* Bridge names: vmbr[N], where 0 ≤ N ≤ 4094 (`vmbr0` - `vmbr4094`)
-
-* Bonds: bond[N], where 0 ≤ N (`bond0`, `bond1`, ...)
-
-* VLANs: Simply add the VLAN number to the device name,
- separated by a period (`eth0.50`, `bond1.30`)
-
-This makes it easier to debug networks problems, because the device
-names implies the device type.
-
-Default Configuration using a Bridge
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-
-The installation program creates a single bridge named `vmbr0`, which
-is connected to the first ethernet card `eth0`. The corresponding
-configuration in '/etc/network/interfaces' looks like this:
-
-----
-auto lo
-iface lo inet loopback
-
-iface eth0 inet manual
-
-auto vmbr0
-iface vmbr0 inet static
- address 192.168.10.2
- netmask 255.255.255.0
- gateway 192.168.10.1
- bridge_ports eth0
- bridge_stp off
- bridge_fd 0
-----
-
-Virtual machines behave as if they were directly connected to the
-physical network. The network, in turn, sees each virtual machine as
-having its own MAC, even though there is only one network cable
-connecting all of these VMs to the network.
-
-
-Routed Configuration
-~~~~~~~~~~~~~~~~~~~~
projects / pve-docs.git / blobdiff