[#898] Added text about reservation for a BOOTP client

diff --git a/doc/sphinx/arm/hooks-bootp.rst b/doc/sphinx/arm/hooks-bootp.rst
index 5df4baed2b76ca86328ead6dd2de888ccaadf768..b687d6c003d5d0f4cfbee28c2f8af643eae1f2e9 100644 (file)
--- a/doc/sphinx/arm/hooks-bootp.rst
+++ b/doc/sphinx/arm/hooks-bootp.rst
@@ -34,6 +34,10 @@ It takes no parameter.
    This library is only meant to be loaded by the ``kea-dhcp4`` process
    as there is no BOOTP protocol for IPv6.
 
+.. note::
+
+   A host reservation for a BOOTP client should use the hardware address
+   as the identifier (the client-id option is a DHCP specific option).
 
 .. _hooks-bootp-config: