diff --git a/share/man/man4/gif.4 b/share/man/man4/gif.4
index f056b4142681..05042d4247c1 100644
--- a/share/man/man4/gif.4
+++ b/share/man/man4/gif.4
@@ -50,6 +50,13 @@ On
 .Nm
 can also tunnel ISO traffic over IPv[46] using EON encapsulation.
 .Pp
+.Nm
+interfaces are allocated at runtime using interface cloning.  This is
+most easily done with the
+.Xr ifconfig 8
+.Cm create
+command.
+.Pp
 To use
 .Nm ,
 administrator needs to configure protocol and addresses used for the outer
diff --git a/usr.sbin/gifconfig/gifconfig.8 b/usr.sbin/gifconfig/gifconfig.8
index 539b1196b3ad..7c00c32fcef9 100644
--- a/usr.sbin/gifconfig/gifconfig.8
+++ b/usr.sbin/gifconfig/gifconfig.8
@@ -90,6 +90,13 @@ interfaces.
 Please note that it is very easy to create infinite routing loop,
 when you configure tunnel over same address family
 (e.g. IPv4-over-IPv4).
+.Pp
+gif
+interfaces are allocated at runtime using interface cloning.  This is
+most easily done with the
+.Xr ifconfig 8
+.Cm create
+command.
 .Sh EXAMPLES
 If you would like to configure IPv6 over IPv4
 (aka IPv6 in IPv4)