From: Francis Dupont <fdupont@isc.org>
Date: Tue, 18 Jun 2024 13:45:53 +0000 (+0200)
Subject: [#2878] [#2878] Added the implicitly global note
X-Git-Tag: Kea-2.7.0~24
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d5dbaa4c0751b897283f046d20f172d681c0b7c5;p=thirdparty%2Fkea.git

[#2878] [#2878] Added the implicitly global note
---

diff --git a/doc/sphinx/arm/hooks-host-cmds.rst b/doc/sphinx/arm/hooks-host-cmds.rst
index f5ce814120..7ba4f9db6f 100644
--- a/doc/sphinx/arm/hooks-host-cmds.rst
+++ b/doc/sphinx/arm/hooks-host-cmds.rst
@@ -271,6 +271,14 @@ As :isccmd:`reservation-add` is expected to store the host, the ``hosts-database
 parameter must be specified in the configuration, and databases must not
 run in read-only mode.
 
+.. note::
+
+   Since kea version 2.7.0 an empty reservation is implicitly global, i.e.
+   if no ``subnet-id`` entry is present and for DHCPv4 ``ip-address`` or
+   for DHCPv6 ``ip-addresses`` and ``prefixes`` do not specify a reserved
+   address or prefix the command is valid and adds a global (subnet id 0)
+   host reservation.
+
 .. isccmd:: reservation-get
 .. _command-reservation-get: