[Openvpn-users] passtos not working properly

[Sebastian F. <seb...@fl...>]

I'm currently troubleshooting an OpenVPN setup where VoIP needs to be  
prioritized. The VoIP devices set appropriate TOS values on their  
packets, so I need OpenVPN to pass them through to the encrypted  
packets.

I added passtos to the config files on both the server and the client,  
however, only the server obeys this parameter. Running the client with  
verb 11 clearly shows that it recognizes the parameter, but all  
outgoing packets still have a TOS field of zero.

Both ends run OpenVPN 2.0.9 on Linux. Is this a known issue, or can  
you suggest any potential fixes or approaches for further diagnosis?  
Searching the list archives, changelogs etc. I couldn't find anything  
related to this problem.


Thanks,
Sebastian