hello, are You sure about this ? really sure ? [sorry, You are talking with poor civil engineer, no IT perk 
]
well i have commtrend comtrend vr-3026e v2 multi-dsl
where i did bridge mode according manuals at http://comtrend.michnzee.net/
but it seems it is not working.
Documentation for OpenVPN told me nothing new,m neither the forum…
Actually, I though i had set a specific question, or not ?
I will just keep looking more.
thank You