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man: document that nspawn's host0 and ve-* interfaces have default config in networkd

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This commit is contained in:
Lennart Poettering 2016-05-06 20:50:16 +02:00
parent 7be8fb7bfc
commit 5e7423ff25
1 changed files with 21 additions and 15 deletions
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36
man/systemd-nspawn.xml
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@ -524,15 +524,23 @@
<term><option>-n</option></term> <term><option>-n</option></term>
<term><option>--network-veth</option></term> <term><option>--network-veth</option></term>
<listitem><para>Create a virtual Ethernet link <listitem><para>Create a virtual Ethernet link (<literal>veth</literal>) between host and container. The host
(<literal>veth</literal>) between host and container. The host side of the Ethernet link will be available as a network interface named after the container's name (as
side of the Ethernet link will be available as a network specified with <option>--machine=</option>), prefixed with <literal>ve-</literal>. The container side of the
interface named after the container's name (as specified with Ethernet link will be named <literal>host0</literal>. The <option>--network-veth</option> option implies
<option>--machine=</option>), prefixed with <option>--private-network</option>.</para>
<literal>ve-</literal>. The container side of the Ethernet
link will be named <literal>host0</literal>. Note that <para>Note that
<option>--network-veth</option> implies <citerefentry><refentrytitle>systemd-networkd.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>
<option>--private-network</option>.</para></listitem> includes by default a network file <filename>/usr/lib/systemd/network/80-container-ve.network</filename>
matching the host-side interfaces created this way, which contains settings to enable automatic address
provisioning on the created virtual link via DHCP, as well as automatic IP routing onto the host's external
network interfaces. It also contains <filename>/usr/lib/systemd/network/80-container-host0.network</filename>
matching the container-side interface created this way, containing settings to enable client side address
assignment via DHCP. In case <filename>systemd-networkd</filename> is running on both the host and inside the
container, automatic IP communication from the container to the host is thus available, with further
connectivity to the external network.</para>
</listitem>
</varlistentry> </varlistentry>
<varlistentry> <varlistentry>
@ -553,12 +561,10 @@
<varlistentry> <varlistentry>
<term><option>--network-bridge=</option></term> <term><option>--network-bridge=</option></term>
<listitem><para>Adds the host side of the Ethernet link <listitem><para>Adds the host side of the Ethernet link created with <option>--network-veth</option> to the
created with <option>--network-veth</option> to the specified specified Ethernet bridge interface. Expects a valid network interface name of a bridge device as
bridge. Note that <option>--network-bridge=</option> implies argument. Note that <option>--network-bridge=</option> implies <option>--network-veth</option>. If this option
<option>--network-veth</option>. If this option is used, the is used, the host side of the Ethernet link will use the <literal>vb-</literal> prefix instead of
host side of the Ethernet link will use the
<literal>vb-</literal> prefix instead of
<literal>ve-</literal>.</para></listitem> <literal>ve-</literal>.</para></listitem>
</varlistentry> </varlistentry>