Diffstat (limited to 'Documentation/networking/ipddp.txt')
1 files changed, 78 insertions, 0 deletions
diff --git a/Documentation/networking/ipddp.txt b/Documentation/networking/ipddp.txt
new file mode 100644
@@ -0,0 +1,78 @@
+Text file for ipddp.c:
+ AppleTalk-IP Decapsulation and AppleTalk-IP Encapsulation
+This text file is written by Jay Schulist <email@example.com>
+AppleTalk-IP (IPDDP) is the method computers connected to AppleTalk
+networks can use to communicate via IP. AppleTalk-IP is simply IP datagrams
+inside AppleTalk packets.
+Through this driver you can either allow your Linux box to communicate
+IP over an AppleTalk network or you can provide IP gatewaying functions
+for your AppleTalk users.
+You can currently encapsulate or decapsulate AppleTalk-IP on LocalTalk,
+EtherTalk and PPPTalk. The only limit on the protocol is that of what
+kernel AppleTalk layer and drivers are available.
+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
+select ONE of the two options; IP to AppleTalk-IP encapsulation support or
+AppleTalk-IP to IP decapsulation support. If you compile the driver
+statically you will only be able to use the driver for the function you have
+enabled in the kernel. If you compile the driver as a module you can
+select what mode you want it to run in via a module loading param.
+ipddp_mode=1 for AppleTalk-IP encapsulation and ipddp_mode=2 for
+AppleTalk-IP to IP decapsulation.
+Basic instructions for user space tools
+To enable AppleTalk-IP decapsulation/encapsulation you will need the
+proper tools. You can get the tools for decapsulation from
+http://spacs1.spacs.k12.wi.us/~jschlst/index.html and for encapsulation
+I will briefly describe the operation of the tools, but you will
+need to consult the supporting documentation for each set of tools.
+Decapsulation - You will need to download a software package called
+MacGate. In this distribution there will be a tool called MacRoute
+which enables you to add routes to the kernel for your Macs by hand.
+Also the tool MacRegGateWay is included to register the
+proper IP Gateway and IP addresses for your machine. Included in this
+distribution is a patch to netatalk-1.4b2+asun2.0a17.2 (available from
+ftp.u.washington.edu/pub/user-supported/asun/) this patch is optional
+but it allows automatic adding and deleting of routes for Macs. (Handy
+for locations with large Mac installations)
+Encapsulation - You will need to download a software daemon called ipddpd.
+This software expects there to be an AppleTalk-IP gateway on the network.
+You will also need to add the proper routes to route your Linux box's IP
+traffic out the ipddp interface.
+Common Uses of ipddp.c
+Of course AppleTalk-IP decapsulation and encapsulation, but specifically
+decapsulation is being used most for connecting LocalTalk networks to
+IP networks. Although it has been used on EtherTalk networks to allow
+Macs that are only able to tunnel IP over EtherTalk.
+Encapsulation has been used to allow a Linux box stuck on a LocalTalk
+network to use IP. It should work equally well if you are stuck on an
+EtherTalk only network.
+You can contact me (Jay Schulist <firstname.lastname@example.org>) with any
+questions regarding decapsulation or encapsulation. Bradford W. Johnson
+<email@example.com> originally wrote the ipddp.c driver for IP
+encapsulation in AppleTalk.