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Diffstat (limited to 'doc/nft.xml')
| -rw-r--r-- | doc/nft.xml | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/doc/nft.xml b/doc/nft.xml index 3b215f8c..e6b98ae7 100644 --- a/doc/nft.xml +++ b/doc/nft.xml @@ -1222,6 +1222,90 @@ filter output oif eth0 </example> </para> </refsect2> + + <refsect2> + <title>Routing expressions</title> + <para> + <cmdsynopsis> + <command>rt</command> + <group choice="req"> + <arg>classid</arg> + <arg>nexthop</arg> + </group> + </cmdsynopsis> + </para> + <para> + A routing expression refers to routing data associated with a packet. + </para> + <para> + <table frame="all"> + <title>Routing expression types</title> + <tgroup cols='4' align='left' colsep='1' rowsep='1'> + <colspec colname='c1'/> + <colspec colname='c2'/> + <colspec colname='c3'/> + <thead> + <row> + <entry>Keyword</entry> + <entry>Description</entry> + <entry>Type</entry> + </row> + </thead> + <tbody> + <row> + <entry>classid</entry> + <entry>Routing realm</entry> + <entry>realm</entry> + </row> + <row> + <entry>nexthop</entry> + <entry>Routing nexthop</entry> + <entry>ipv4_addr/ipv6_addr</entry> + </row> + </tbody> + </tgroup> + </table> + </para> + <para> + <table frame="all"> + <title>Routing expression specific types</title> + <tgroup cols='2' align='left' colsep='1' rowsep='1'> + <colspec colname='c1'/> + <colspec colname='c2'/> + <thead> + <row> + <entry>Type</entry> + <entry>Description</entry> + </row> + </thead> + <tbody> + <row> + <entry>realm</entry> + <entry> + Routing Realm (32 bit number). Can be specified numerically + or as symbolic name defined in /etc/iproute2/rt_realms. + </entry> + </row> + </tbody> + </tgroup> + </table> + </para> + <para> + <example> + <title>Using routing expressions</title> + <programlisting> +# IP family independent rt expression +filter output rt classid 10 + +# IP family dependent rt expressions +ip filter output rt nexthop 192.168.0.1 +ip6 filter output rt nexthop fd00::1 +inet filter ether type ip output rt nexthop 192.168.0.1 +inet filter ether type ip6 output rt nexthop fd00::1 + </programlisting> + </example> + </para> + </refsect2> </refsect1> <refsect1> |