On Mon, Apr 26, 2021 at 07:51:11PM +0200, Frank Wunderlich wrote: > Hi Pablo, > > Is alex' guess right and i need to use physical interface instead of > the virtual one? Confusing, you reported an example that works: http://forum.banana-pi.org/t/new-netfilter-flow-table-based-hnat/12049/30 That was in March 2021. > In my case i have ppp connection over vlan on wan port. > > ppp8 => wan.110 => wan > > Lan side (bridge) may work,but for ppp it sounds wrong to me. Just add the 'wan' device to the flowtable, as you did back in March.