Mikrotik Routing Youtube to another WAN Link

here is my configuration:

modem1: 192.168.1.1
modem2:192.168.3.1 (on which i want to route the youtube traffic)
LAN:10.10.10.1/24

/ip firewall mangle chain=prerouting action=mark-routing new-routing-mark=youtube passthrough=yes src-address=0.0.0.0/0 dst-address-list=youtube (list of all ip of youtube)


{youtube-list : 74.125.236.0/24 }

then I created the ROUTE for this list.

/ip route add comment=”" disabled=no distance=1 dst-address=0.0.0.0/0 gateway=192.168.3.1 routing-mark=youtube scope=255 target-scope=10


Please tell me where i did the mistake?

thanks

hi
you must nat your lan from each gateway.
please check your nat.
/ ip firewall nat
add chain=srcnat out-interface=modem1 action=masquerade
add chain=srcnat out-interface=modem2 action=masquerade

thanks man, i solved this problem and your suggestion is exactly the same , that I used during the way to solved this problem.