Add the Forwarding option.

[tinc] / doc / tinc.conf.5.in

diff --git a/doc/tinc.conf.5.in b/doc/tinc.conf.5.in
index 6f8db9c..797ca52 100644 (file)
--- a/doc/tinc.conf.5.in
+++ b/doc/tinc.conf.5.in
@@ -199,6 +199,26 @@ Tinc will expect packets read from the virtual network device
 to start with an Ethernet header.
 .El
 
+.It Va Forwarding Li = off | internal | kernel Pq internal
+This option selects the way indirect packets are forwarded.
+.Bl -tag -width indent
+
+.It off
+Incoming packets that are not meant for the local node,
+but which should be forwarded to another node, are dropped.
+
+.It internal
+Incoming packets that are meant for another node are forwarded by tinc internally.
+
+.Pp
+This is the default mode, and unless you really know you need another forwarding mode, don't change it.
+
+.It kernel
+Incoming packets are always sent to the TUN/TAP device, even if the packets are not for the local node.
+This is less efficient, but allows the kernel to apply its routing and firewall rules on them,
+and can also help debugging.
+.El
+
 .It Va GraphDumpFile Li = Ar filename Bq experimental
 If this option is present,
 .Nm tinc