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-rw-r--r--man/systemd.network.xml11
1 files changed, 11 insertions, 0 deletions
diff --git a/man/systemd.network.xml b/man/systemd.network.xml
index d7947836e9..8ae384185d 100644
--- a/man/systemd.network.xml
+++ b/man/systemd.network.xml
@@ -202,6 +202,8 @@
<para>The maximum transmission unit in bytes to set for the
device. The usual suffixes K, M, G, are supported and are
understood to the base of 1024.</para>
+ <para>Note that if IPv6 is enabled on the interface, and the MTU is chosen
+ below 1280 (the minimum MTU for IPv6) it will automatically be increased to this value.</para>
</listitem>
</varlistentry>
<varlistentry>
@@ -210,6 +212,15 @@
<para>Identity Association Identifier for the interface, a 32-bit unsigned integer.</para>
</listitem>
</varlistentry>
+ <varlistentry>
+ <listitem>
+ <para>Note that an interface without any static IPv6 addresses configured, and neither
+ DHCPv6 nor IPv6LL enabled, shall be considered to have no IPv6 support. IPv6 will be
+ automatically disabled for that interface by writing "1" to
+ <filename>/proc/sys/net/ipv6/conf/<replaceable>ifname</replaceable>/disable_ipv6.</filename>
+ </para>
+ </listitem>
+ </varlistentry>
</variablelist>
</refsect1>