Question: Firewall forwarding

Hi, how can I forward a port?

you need to use DST-NAT

http://www.mikrotik.com/testdocs/ros/2.9/ip/nat_content.php#6.36.3.3

In the past I always do that by using Winbox but now its giving error.

in firewall I add nat rule

chain is dstnat

dstaddress is wan address

than action

action is dst-nat
to addresses is lan address
to ports is the port that I want to forward

but now it says: Couldn’t add new nat rule -
to-ports valid only for tcp/udp (6)

you have to select protocol TCP also