recent change to ifconfig breaks OpenVPN?

Stefan Bethke stb at
Fri Jul 31 16:58:23 UTC 2009

Am 31.07.2009 um 14:38 schrieb Stefan Bethke:

> Here's a first draft at a patch for OpenVPN.  With this, the tun  
> interface gets set to IFF_BROADCAST mode.  One small piece is still  
> missing: OpenVPN tries to install a route for the subnet, but that  
> fails because now ifconfig has already inserted that route.  I'll  
> try to look into that a bit later on.  I also haven't tested the  
> server side yet, or any other mode.

The route for the subnet is pushed by the server (expanded from the -- 
server config option).  Although adding the route fails, the  
connection process continues and the connection is working fine.   
Making either the client ignore the pushed route or the server not  
push the route would be rather intrusive, so I think leaving it at  
this should be acceptable.

Will continue testing...


Stefan Bethke <stb at>   Fon +49 151 14070811

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