Additional openvpn client

Hi !
I’m sorry thats mayne not enough for you, but i’m a littel bit for now…
when i provide
" route add -net 192.168.99.0 netmask 255.255.255.0 gw 192.168.99.1" at the ipfire everything works…
So the point is where i have to manage that ipfire is setting this route when the client comes up

Ciao Gerd