diff --git a/Documentation/networking/index.rst b/Documentation/networking/index.rst
index 488971f..cf85d0a 100644
--- a/Documentation/networking/index.rst
+++ b/Documentation/networking/index.rst
@@ -65,6 +65,7 @@
    gtp
    hinic
    ila
+   ipddp
 
 .. only::  subproject and html
 
diff --git a/Documentation/networking/ipddp.txt b/Documentation/networking/ipddp.rst
similarity index 89%
rename from Documentation/networking/ipddp.txt
rename to Documentation/networking/ipddp.rst
index ba5c217..be7091b 100644
--- a/Documentation/networking/ipddp.txt
+++ b/Documentation/networking/ipddp.rst
@@ -1,7 +1,12 @@
-Text file for ipddp.c:
-	AppleTalk-IP Decapsulation and AppleTalk-IP Encapsulation
+.. SPDX-License-Identifier: GPL-2.0
 
-This text file is written by Jay Schulist <jschlst@samba.org>
+=========================================================
+AppleTalk-IP Decapsulation and AppleTalk-IP Encapsulation
+=========================================================
+
+Documentation ipddp.c
+
+This file is written by Jay Schulist <jschlst@samba.org>
 
 Introduction
 ------------
@@ -21,7 +26,7 @@
 Each mode requires its own user space software.
 
 Compiling AppleTalk-IP Decapsulation/Encapsulation
-=================================================
+==================================================
 
 AppleTalk-IP decapsulation needs to be compiled into your kernel. You
 will need to turn on AppleTalk-IP driver support. Then you will need to
diff --git a/Documentation/networking/ltpc.txt b/Documentation/networking/ltpc.txt
index 0bf3220c..a005a73 100644
--- a/Documentation/networking/ltpc.txt
+++ b/Documentation/networking/ltpc.txt
@@ -99,7 +99,7 @@
 that's what it looks like to Netatalk.
 
 Instead, you follow the same procedure as for doing IP in EtherTalk.
-See Documentation/networking/ipddp.txt for more information about the
+See Documentation/networking/ipddp.rst for more information about the
 kernel driver and userspace tools needed.
 
 --------------------------------------
diff --git a/drivers/net/appletalk/Kconfig b/drivers/net/appletalk/Kconfig
index d4e51c0..ccde647 100644
--- a/drivers/net/appletalk/Kconfig
+++ b/drivers/net/appletalk/Kconfig
@@ -86,7 +86,7 @@
 	  box is stuck on an AppleTalk only network) or decapsulate (e.g. if
 	  you want your Linux box to act as an Internet gateway for a zoo of
 	  AppleTalk connected Macs). Please see the file
-	  <file:Documentation/networking/ipddp.txt> for more information.
+	  <file:Documentation/networking/ipddp.rst> for more information.
 
 	  If you say Y here, the AppleTalk-IP support will be compiled into
 	  the kernel. In this case, you can either use encapsulation or
@@ -107,4 +107,4 @@
 	  IP packets inside AppleTalk frames; this is useful if your Linux box
 	  is stuck on an AppleTalk network (which hopefully contains a
 	  decapsulator somewhere). Please see
-	  <file:Documentation/networking/ipddp.txt> for more information.
+	  <file:Documentation/networking/ipddp.rst> for more information.