man: ARP=no also disables IPv6 Neighbor Discovery Protocol

Addresses https://github.com/systemd/systemd/issues/18063#issuecomment-2323410288.

diff --git a/man/systemd.network.xml b/man/systemd.network.xml
index 89484c449f31d20201befa17e57dc3616412f630..e743e6d2a0276588a85cedf7c77e4c32d6f1ce5f 100644 (file)
--- a/man/systemd.network.xml
+++ b/man/systemd.network.xml
@@ -188,8 +188,9 @@
       <varlistentry>
         <term><varname>ARP=</varname></term>
         <listitem>
-          <para>Takes a boolean. If set to true, the ARP (low-level Address Resolution Protocol)
-          for this interface is enabled. When unset, the kernel's default will be used.</para>
+          <para>Takes a boolean. If set to true, the IPv4 ARP (low-level Address Resolution Protocol)
+          and IPv6 NDP (Neighbor Discovery Protocol) for this interface are enabled. When unset, the
+          kernel's default will be used.</para>
           <para> For example, disabling ARP is useful when creating multiple MACVLAN or VLAN virtual
           interfaces atop a single lower-level physical interface, which will then only serve as a
           link/"bridge" device aggregating traffic to the same physical link and not participate in