Nat 1:1 and limit vpn trafic

[cybermod]

hi all, maybe this is the right section.

I have this configuration:

wan with virtual ip – pfsense --  lan 192.168.18.1 --  ip public with nat 1:1 on -- 192.168.18.2  wan router Draytek -- lan guest

With my pfsense i add the limiter bandwitch. So, the clients behind lan draytek have the right limiter for the internet trafic, but my draytek do a vpn site to site with anoter device. I have some problems on this vpn.
The outgoin vpn traffic is limited, but the  incoming vpn trafic is not limited..... this is a bad problem for me, and make me crazy.

Tnx so much

Regards