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man: clarify what network scopes are

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This commit is contained in:
Adam Nielsen
2021-01-17 11:10:57 +10:00
committed by Yu Watanabe
parent 0132453c40
commit e64652f70c
1 changed files with 30 additions and 7 deletions
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37
man/systemd.network.xml
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@@ -1051,8 +1051,11 @@ IPv6Token=prefixstable:2002:da8:1::</programlisting></para>
<varlistentry>
<term><varname>Scope=</varname></term>
<listitem>
<para>The scope of the address, which can be <literal>global</literal>,
<literal>link</literal> or <literal>host</literal> or an unsigned integer in the range 0—255.
<para>The scope of the address, which can be
<literal>global</literal> (valid everywhere on the network, even through a gateway),
<literal>link</literal> (only valid on this device, will not traverse a gateway) or
<literal>host</literal> (only valid within the device itself, e.g. 127.0.0.1)
or an unsigned integer in the range 0—255.
Defaults to <literal>global</literal>.</para>
</listitem>
</varlistentry>
@@ -1367,12 +1370,32 @@ IPv6Token=prefixstable:2002:da8:1::</programlisting></para>
<varlistentry>
<term><varname>Scope=</varname></term>
<listitem>
<para>The scope of the route, which can be <literal>global</literal>, <literal>site</literal>,
<literal>link</literal>, <literal>host</literal>, or <literal>nowhere</literal>. For IPv4 route,
defaults to <literal>host</literal> if <varname>Type=</varname> is <literal>local</literal>
or <literal>nat</literal>, and <literal>link</literal> if <varname>Type=</varname> is
<para>The scope of the IPv4 route, which can be <literal>global</literal>, <literal>site</literal>,
<literal>link</literal>, <literal>host</literal>, or
<literal>nowhere</literal>:</para>
<itemizedlist>
<listitem><para><literal>global</literal> means the route can reach
hosts more than one hop away.</para></listitem>
<listitem><para><literal>site</literal> means an interior route in
the local autonomous system.</para></listitem>
<listitem><para><literal>link</literal> means the route can only
reach hosts on the local network (one hop away).</para></listitem>
<listitem><para><literal>host</literal> means the route will not
leave the local machine (used for internal addresses like
127.0.0.1).</para></listitem>
<listitem><para><literal>nowhere</literal> means the destination
doesn't exist.</para></listitem>
</itemizedlist>
<para>For IPv4 route, defaults to <literal>host</literal> if <varname>Type=</varname> is
<literal>local</literal> or <literal>nat</literal>,
and <literal>link</literal> if <varname>Type=</varname> is
<literal>broadcast</literal>, <literal>multicast</literal>, or <literal>anycast</literal>.
In other cases, defaults to <literal>global</literal>.</para>
In other cases, defaults to <literal>global</literal>. The value is
not used for IPv6.</para>
</listitem>
</varlistentry>
<varlistentry>