If you have two DSL links, and you want to dedicate one link for the YOUTUBE and FACEBOOK traffic only, you can do it with Mikrotik in few simple steps.
First understand the logic, Main idea is to first create Address list with YOUTUBE ip addresses. (u can get them from goggling) then , in mangle, create rule to mark packets with the above created address list, name it
youtube-addresses, then in route create rule to route youtube address list to go via DSL 2 .
Some examples . . .
/ip firewall mangle chain=prerouting action=mark-routing new-routing-mark=youtube passthrough=yes src-address=0.0.0.0/0 dst-address=208.65.152.0/21
(or destination address list you created in starting, U have to create Several IP address lists)
then create ROUTE for this list.
/ip route add comment=”" disabled=no distance=1 dst-address=0.0.0.0/0 gateway=192.168.2.1 routing-mark=youtube scope=255 target-scope=10
Its amazing, you can route any Website/traffic to specific WAN link, for example dedicated DSL link for streaming media sites or FB. its kewl 
For more info and ideas, please visit following link.
http://wiki.mikrotik.com/wiki/Per-Traffic_Load_Balancing
Perhaps a better approach for youtube mark and route method.
http://adminsline.wordpress.com/2012/08/03/mikrotik-youtube/
zaiB !
thats good i think its better than load balancing
Comment by usman — August 7, 2011 @ 7:21 PM
Hmmm in some scenario its good.
~
For example, at my friends setup, I used it to route only Youtube base traffic to DSl line (10mb x 4 dsl). Main internet backbone was 30mb via fiber optics. but I didn’t wanted it to put youtube load on main feed, therefore I marked Youtube content and route it to RB750 Load balancer. That’s how I saved considerably bandwidth
Comment by Pinochio / zaib — August 8, 2011 @ 7:23 AM
i apply the rule but still the same situation kindly tell me how to put the browsing on one wan and download on one wan.Thanks
Comment by salman — October 14, 2011 @ 1:22 PM
use packet marking.
Mark the packet with the extentions you want to route to 2nd wan for example .mp3 .exe .flv etc etc.
Then create new route for marked packet and set its gateway to 2nd wan.
Comment by Pinochio~:) — October 14, 2011 @ 1:58 PM
kindly u can tell me the script Thanks
Comment by Salman — October 17, 2011 @ 12:56 AM
In this paket marking youtube streaming will also be balance?
Comment by salman — October 17, 2011 @ 7:19 PM
Actually the method described in this post will mark packets for specific destination ips, then request for these destination will be routed to second gateway. These ips can be any web site ip whether its you-tube or any other.
Comment by Pinochio~:) — October 18, 2011 @ 10:52 AM
Sir u can give me example of packet marking.That how to do
Thanks
Comment by salman — October 27, 2011 @ 1:51 PM
Q:1- Can we route youtube (same addresses) on 2 to 3 wan links at a time? and give us Rules.
Q:2- Can we use PCC with this routing.
thanks,
Azam
Comment by crownwirelessm — December 18, 2011 @ 2:09 PM
1# You can define only one Route for specific marked packets.
2# Yes you can use PCC with some minor editing.
Comment by Pinochio~:) — December 19, 2011 @ 10:40 AM
when i use you tube routing, then all other traffic automatically route to second WAN link?
regards,
Comment by crownwirelessazam — December 24, 2011 @ 1:17 PM
Well, the target was to route youtube or FLV related traffic to one WAN link and all other traffic to Second WAN link.
Describe in detail if you have any query regarding it.
Comment by Pinochio~:) — December 24, 2011 @ 2:32 PM
Youtube routing
/ip route add comment=”” disabled=no distance=1 dst-address=0.0.0.0/0 gateway= routing-mark=youtube scope=255 target-scope=10
all other traffic routing
/ip route add comment=”” disabled=no distance=1 dst-address=0.0.0.0/0 gateway= scope=255 target-scope=10 check-gateway=ping
for failover DSL-2
/ip route add comment=”” disabled=no distance=2 dst-address=0.0.0.0/0 gateway= scope=255 target-scope=10 check-gateway=ping
is this ok?
regards
Comment by muhammad azam — December 27, 2011 @ 3:00 PM
Youtube routing
/ip route add comment=”” disabled=no distance=1 dst-address=0.0.0.0/0 gateway=”DSL-1 IP address” routing-mark=youtube scope=255 target-scope=10
all other traffic routing
/ip route add comment=”” disabled=no distance=1 dst-address=0.0.0.0/0 gateway=”DSL-2 IP address” scope=255 target-scope=10 check-gateway=ping
for failover DSL-2
/ip route add comment=”” disabled=no distance=2 dst-address=0.0.0.0/0 gateway=”DSL-1 IP address” scope=255 target-scope=10 check-gateway=ping
is this ok?
regards
Comment by muhammad azam — December 27, 2011 @ 3:02 PM
Good job. Sir i want better youtube service on one wan. i.e, prioritize youtube over downloading
Comment by waqar — May 10, 2012 @ 11:20 PM
Dear Jhanzaib Bhai…. AOA
I cant able to traceout the IP’s of youtube, as they hide he IP’s on the backend of Google.com….. Kindlt tell me how to deal with this issue…. 173.194.35.97 IP is showing at nslookup but its not to be UTUBE IP
Comment by kashif khan — September 1, 2012 @ 9:08 PM
Create a address list name Youtube
Try this
/ip firewall mangle chain=prerouting action=add-dst-to-address-list protocol=tcp address-list=Youtube address-list-timeout=60m in-interface=!ether2(WAN Interface) dst-port=80 content=youtube.com
Addresses will be added to Youtube address list and will be there for 1 hour.
Comment by Syed Jahanzaib / Pinochio~:) — September 1, 2012 @ 10:49 PM
Asalam O Alikum sir
sir thanks for this article.. sir if you can please tell how to use this thing with pcc, i hve tried it but not working
Comment by ZJ — September 22, 2012 @ 2:07 PM
Hi, can some one help me to make one WAN for browsing (HTTP&HTTPS), and the other one for Download and youtube?
DSL1=192.168.0.1
DSL2=192.168.100.250
Mikrotik:-
LAN 10.0.0.1/23
WAN1 192.168.0.2/24
WAN2 192.168.100.1/24
please help!
Comment by zoomoos — December 12, 2012 @ 6:07 PM
Thank you! Thats what I was looking for
I am using YT dst-address mark by content youtube.com and add to address-list
right now around 1300 IPs
but I noticed some streams of downloading are going through YT WAN also…
but in general it free 40% utilization from WAN_1 to WAN_YT
Comment by Arni — February 6, 2013 @ 4:41 AM
Hi every body
I have 2 inter face as following:
!-lan-1 192.168.10.0/22
2-Wan-1 xxx.xxx.xxx.xxx/27 and in the wan interface i have 4 valid ip and i has set all of the 4 IP in the IP Address List.
As example I want to send all traffic for youtube.com through the one of the valid ip on WAN-1, and all more traffic to the next valid ip on the same wan interface. Can some one help me?????????
Comment by Pooyan — March 1, 2013 @ 3:19 AM