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-rw-r--r--docs/services/dhcp.rst28
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diff --git a/docs/services/dhcp.rst b/docs/services/dhcp.rst
index 684101da..62e45644 100644
--- a/docs/services/dhcp.rst
+++ b/docs/services/dhcp.rst
@@ -293,6 +293,34 @@ if you need multiple search domains (DHCP Option 119).
Multi: can be specified multiple times.
+Raw parameters
+--------------
+
+Raw parameters can be passed to shared-network-name, subnet and static-mapping:
+
+.. code-block:: none
+
+ set service dhcp-server shared-network-name dhcpexample shared-network-parameters
+ <text> Additional shared-network parameters for DHCP server.
+ set service dhcp-server shared-network-name dhcpexample subnet 192.0.2.0/24 subnet-parameters
+ <text> Additional subnet parameters for DHCP server.
+ set service dhcp-server shared-network-name dhcpexample subnet 192.0.2.0/24 static-mapping example static-mapping-parameters
+ <text> Additional static-mapping parameters for DHCP server.
+ Will be placed inside the "host" block of the mapping.
+
+These parameters are passed as-is to isc-dhcp's dhcpd.conf under the configuration node they are defined in.
+They are not validated so an error in the raw parameters won't be caught by vyos's scripts and will cause dhcpd to fail to start.
+Always verify that the parameters are correct before commiting the configuration.
+Refer to isc-dhcp's dhcpd.conf manual for more information:
+https://kb.isc.org/docs/isc-dhcp-44-manual-pages-dhcpdconf
+
+Example
+^^^^^^^
+
+.. opcmd:: set service dhcp-server shared-network-name dhcpexample subnet 192.0.2.0/24 static-mapping example static-mapping-parameters "option domain-name-servers 192.0.2.11, 192.0.2.12;"
+
+Override the static-mapping's dns-server with a custom one that will be sent only to this host.
+
DHCPv6 Server
=============