102 lines
2.4 KiB
ReStructuredText
102 lines
2.4 KiB
ReStructuredText
.. _node-network:
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==================
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Network Interfaces
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==================
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By default, network configurations are applied to a "default" network interface.
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.. code-block:: shell
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wwctl node set n1 \
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--netdev=eno1 \
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--hwaddr=00:00:00:00:00:01 \
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--ipaddr=10.0.2.1 \
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--netmask=255.255.255.0
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Each cluster node can have multiple network interfaces, differentiated by
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specifying ``--netname``.
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.. code-block:: shell
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wwctl node set n1 \
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--netname=infiniband \
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--netdev=ib1 \
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--ipaddr=10.0.3.1 \
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--netmask=255.255.255.0
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.. warning::
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Due to the way network interface names are assigned by the Linux kernel, and
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later reassigned by udev and systemd, the use of ``eth0``, ``eth1``, etc. as
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interface is strongly discouraged. We recommend the use of the original
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predictable names assigned to the interfaces (e.g., ``eno1``), as otherwise
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an interface may fail to be named correct if its desired name conflicts with
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the kernel-assigned name of another interface during the boot process.
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.. _bonding:
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Bonding
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=======
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Support for bonded / link aggregation network interfaces depends on the network overlay being used.
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The ``ifcfg`` and ``NetworkManager`` overlays can configure a network bond like this:
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.. code-block:: yaml
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network devices:
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bond0:
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type: Bond
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device: bond0
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ipaddr: 192.168.3.100
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netmask: 255.255.255.0
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en1:
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device: en1
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hwaddr: e6:92:39:49:7b:03
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tags:
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master: bond0
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en2:
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device: en2
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hwaddr: 9a:77:29:73:14:f1
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tags:
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master: bond0
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.. _vlan:
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VLAN
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====
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You can set the type also to ``vlan``.
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Some network configuration systems use the network device name
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(e.g., of the form ``eno1.100``)
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to configure VLANs.
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Other network systems need additional network tags:
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- ``vlan_id``: configures the VLAN ID of the interface
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- ``parent_device``: configures which physical interface to use
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.. code-block:: shell
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wwctl node set \
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--netdev vlan42 \
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--ipaddr 10.0.42.1 \
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--netmask 255.255.252.0 \
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--netname iband \
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--type vlan \
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--nettagadd "vlan_id=42,parent_device=eth0" \
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n001
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.. _static_routes:
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Static Routes
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=============
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The included Warewulf network overlays support the configuration of static routes
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using a network tag of the form ``route<N>=<dest>,<gateway>``.
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.. code-block:: shell
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wwctl node set n001 \
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--nettagadd "route1=192.168.2.0/24,192.168.1.254" |