all ports in my bridge. ether1,3,4 have devices.
/ip firewall nat print
Flags: X - disabled, I - invalid, D - dynamic
0 chain=srcnat action=masquerade out-interface=combo1 log=no log-prefix=""
1 X ;;; VOIP
chain=dstnat action=dst-nat to-ports=5060 protocol=tcp
src-address-list=Phones dst-address-list=Peoplefone in-interface=combo1
dst-port=5060 log=yes log-prefix=""
2 ;;; VOIP
chain=dstnat action=dst-nat to-ports=5060 protocol=udp
src-address-list=Peoplefone dst-address-list=Phones in-interface=combo1
dst-port=5060 log=yes log-prefix=""
3 ;;; RTP ports
chain=dstnat action=dst-nat to-ports=8000-30000 protocol=udp
src-address-list=Peoplefone dst-address-list=Phones in-interface=combo1
src-port="" dst-port=8000-30000 log=yes log-prefix=""