Allow disabling of broadcast packets.

[tinc] / doc / tinc.texi

diff --git a/doc/tinc.texi b/doc/tinc.texi
index e69fb7e..9befcfd 100644 (file)
--- a/doc/tinc.texi
+++ b/doc/tinc.texi
@@ -759,7 +759,8 @@ both IPv4 and IPv6 or just IPv6 listening sockets will be created.
 @item BindToAddress = <@var{address}> [experimental]
 If your computer has more than one IPv4 or IPv6 address, tinc
 will by default listen on all of them for incoming connections.
 @item BindToAddress = <@var{address}> [experimental]
 If your computer has more than one IPv4 or IPv6 address, tinc
 will by default listen on all of them for incoming connections.

-It is possible to bind only to a single address with this variable.
+Multiple BindToAddress variables may be specified,
+in which case listening sockets for each specified address are made.

 
 This option may not work on all platforms.
 
 
 This option may not work on all platforms.
 


@@ -772,6 +773,10 @@ variable.
 
 This option may not work on all platforms.
 
 
 This option may not work on all platforms.
 

+@cindex Broadcast
+@item Broadcast = <yes | no> (yes) [experimental]
+When disabled, tinc will drop all broadcast and multicast packets, in both router and switch mode.
+

 @cindex ConnectTo
 @item ConnectTo = <@var{name}>
 Specifies which other tinc daemon to connect to on startup.
 @cindex ConnectTo
 @item ConnectTo = <@var{name}>
 Specifies which other tinc daemon to connect to on startup.


@@ -784,6 +789,13 @@ If you don't specify a host with ConnectTo,
 tinc won't try to connect to other daemons at all,
 and will instead just listen for incoming connections.
 
 tinc won't try to connect to other daemons at all,
 and will instead just listen for incoming connections.
 

+@cindex DecrementTTL
+@item DecrementTTL = <yes | no> (yes)
+When enabled, tinc will decrement the Time To Live field in IPv4 packets, or the Hop Limit field in IPv6 packets,
+before forwarding a received packet to the virtual network device or to another node,
+and will drop packets that have a TTL value of zero,
+in which case it will send an ICMP Time Exceeded packet back.
+

 @cindex Device
 @item Device = <@var{device}> (@file{/dev/tap0}, @file{/dev/net/tun} or other depending on platform)
 The virtual network device to use.
 @cindex Device
 @item Device = <@var{device}> (@file{/dev/tap0}, @file{/dev/net/tun} or other depending on platform)
 The virtual network device to use.