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Allow broadcast packets to be sent directly instead of via the MST.

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When the "Broadcast = direct" option is used, broadcast packets are not sent
and forwarded via the Minimum Spanning Tree to all nodes, but are sent directly
to all nodes that can be reached in one hop.

One use for this is to allow running ad-hoc routing protocols, such as OLSR, on
top of tinc.
This commit is contained in:
Guus Sliepen 2012-04-16 01:57:25 +02:00
parent 535a55100b
commit 84531fb6e6
6 changed files with 97 additions and 22 deletions
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19
doc/tinc.texi
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@ -778,8 +778,23 @@ variable.
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.
@item Broadcast = <no | mst | direct> (mst) [experimental]
This option selects the way broadcast packets are sent to other daemons.
@emph{NOTE: all nodes in a VPN must use the same Broadcast mode, otherwise routing loops can form.}
@table @asis
@item no
Broadcast packets are never sent to other nodes.
@item mst
Broadcast packets are sent and forwarded via the VPN's Minimum Spanning Tree.
This ensures broadcast packets reach all nodes.
@item direct
Broadcast packets are sent directly to all nodes that can be reached directly.
Broadcast packets received from other nodes are never forwarded.
If the IndirectData option is also set, broadcast packets will only be sent to nodes which we have a meta connection to.
@end table
@cindex ConnectTo
@item ConnectTo = <@var{name}>