I have 2 internet links with static ips. both are of 2mb.

I need to merge both two links to make it of 4mb.

Please provide solution.

Check load balancer by PCC. In the wiki you have a example with 2 isp.

I configured the PCC for loadbalaning according to this site
http://wiki.mikrotik.com/wiki/PCC
But link are not taking load on PCC mode. Please check my given configuration and guide what i did wrong in all.

/ip address
0 10.1.1.1/24 10.1.1.0 Lan
1 11.1.1.1/24 11.1.1.0 Wifi
2 192.168.1.3/24 192.168.1.0 WAN1
3 192.168.2.2/24 192.168.2.0 WAN2


/ip firewall mangle

0 chain=prerouting action=accept dst-address=192.168.1.0/24 in-interface=Lan

1 chain=prerouting action=accept dst-address=192.168.2.0/24 in-interface=Lan

2 chain=prerouting action=mark-connection new-connection-mark=WAN1_conn
passthrough=yes in-interface=WAN1 connection-mark=no-mark

3 chain=prerouting action=mark-connection new-connection-mark=WAN2_conn
passthrough=yes in-interface=WAN2 connection-mark=no-mark

4 chain=prerouting action=mark-connection new-connection-mark=WAN1_conn
passthrough=yes dst-address-type=!local in-interface=Lan
connection-mark=no-mark per-connection-classifier=both-addresses:2/0

5 chain=prerouting action=mark-connection new-connection-mark=WAN2_conn
passthrough=yes dst-address-type=!local in-interface=Lan
connection-mark=no-mark per-connection-classifier=both-addresses:2/1

6 chain=prerouting action=mark-routing new-routing-mark=to_WAN1
passthrough=yes in-interface=Lan connection-mark=WAN1_conn

7 chain=prerouting action=mark-routing new-routing-mark=to_WAN2

8 chain=output action=mark-routing new-routing-mark=to_WAN1 passthrough=yes
connection-mark=WAN1_conn

9 chain=output action=mark-routing new-routing-mark=to_WAN2 passthrough=yes
connection-mark=WAN2_conn

/ip route

0 A S 0.0.0.0/0 192.168.1.1 1
1 A S 0.0.0.0/0 192.168.2.1 1
2 A S 0.0.0.0/0 192.168.1.1 1
3 S 0.0.0.0/0 192.168.2.1 2
4 ADC 10.1.1.0/24 10.1.1.1 Lan 0
5 ADC 11.1.1.0/24 11.1.1.1 Wifi 0
6 ADC 192.168.1.0/24 192.168.1.3 WAN1 0
7 ADC 192.168.2.0/24 192.168.2.2 WAN2 0


/ip firewall NAT

0 chain=srcnat action=masquerade out-interface=WAN1

1 chain=srcnat action=masquerade out-interface=WAN2

try this config:

Given scripts not worked. Please guide me for a proper solution.

/ip address
add address=10.1.1.1/24 interface=Lan network=10.1.1.0
add address=192.168.1.3/24 interface=WAN1 network=192.168.1.0
add address=192.168.2.2/24 interface=WAN2 network=192.168.2.0

/ip route
add check-gateway=arp comment="WAN 1 – Distance 1" disabled=no distance=1 dst-address=0.0.0.0/0 gateway=WAN1 routing-mark=wan-1
add check-gateway=arp comment="WAN 2 – Distance 1" disabled=no distance=1 dst-address=0.0.0.0/0 gateway=WAN2 routing-mark=wan-2
add check-gateway=arp comment="WAN 1 – Distance 2" disabled=no distance=2 dst-address=0.0.0.0/0 gateway=WAN2 routing-mark=wan-1
add check-gateway=arp comment="WAN 2 – Distance 2" disabled=no distance=2 dst-address=0.0.0.0/0 gateway=WAN1 routing-mark=wan-2
add check-gateway=arp comment="Default Route – Distance 1" disabled=no distance=1 dst-address=0.0.0.0/0 gateway=WAN1
add check-gateway=arp comment="Default Route – Distance 2" disabled=no distance=2 dst-address=0.0.0.0/0 gateway=WAN2
add check-gateway=arp comment="Static Route – WAN1" disabled=no distance=1 dst-address=0.0.0.0/0 gateway=WAN1 routing-mark=static-wan1
add check-gateway=arp comment="Static Route – WAN2" disabled=no distance=2 dst-address=0.0.0.0/0 gateway=WAN2 routing-mark=static-wan2

/ip firewall mangle
add action=mark-connection chain=input comment="Mark new inbound connection wan1" connection-state=new disabled=no in-interface=WAN1 new-connection-mark=wan-1 passthrough=yes
add action=mark-connection chain=input comment="Mark new inbound connection wan2" connection-state=new disabled=no in-interface=WAN2 new-connection-mark=wan-2 passthrough=yes
add action=mark-connection chain=prerouting comment="Mark established inbound connection wan1" connection-state=established disabled=no in-interface=WAN1 new-connection-mark=wan-1 passthrough=yes
add action=mark-connection chain=prerouting comment="Mark established inbound connection wan2" connection-state=established disabled=no in-interface=WAN2 new-connection-mark=wan-2 passthrough=yes
add action=mark-connection chain=prerouting comment="Mark related inbound connection wan1" connection-state=related disabled=no in-interface=WAN1 new-connection-mark=wan-1 passthrough=yes
add action=mark-connection chain=prerouting comment="Mark related inbound connection wan2" connection-state=related disabled=no in-interface=WAN2 new-connection-mark=wan-2 passthrough=yes
add action=mark-routing chain=output comment="Mark new inbound route wan1" connection-mark=wan-1 disabled=no new-routing-mark=static-wan1 passthrough=no
add action=mark-routing chain=output comment="Mark new inbound route wan2" connection-mark=wan-2 disabled=no new-routing-mark=static-wan2 passthrough=no
add action=mark-connection chain=prerouting comment="Mark traffic that isn’t local with PCC mark rand (2 possibilities) – option 1" connection-state=new disabled=no dst-address-type=!local in-interface=Lan new-connection-mark=wan1_pcc_conn passthrough=yes per-connection-classifier=both-addresses:2/0
add action=mark-connection chain=prerouting comment="Mark traffic that isn’t local with PCC mark rand (2 possibilities) – option 2" connection-state=new disabled=no dst-address-type=!local in-interface=Lan new-connection-mark=wan2_pcc_conn passthrough=yes per-connection-classifier=both-addresses:2/1
add action=mark-connection chain=prerouting comment="Mark established traffic that isn’t local with PCC mark rand (2 possibilities) – option 1" connection-state=established disabled=no dst-address-type=!local in-interface=Lan new-connection-mark=wan1_pcc_conn passthrough=yes per-connection-classifier=both-addresses:2/0
add action=mark-connection chain=prerouting comment="Mark established traffic that isn’t local with PCC mark rand (2 possibilities) – option 2" connection-state=established disabled=no dst-address-type=!local in-interface=Lan new-connection-mark=wan2_pcc_conn passthrough=yes per-connection-classifier=both-addresses:2/1
add action=mark-connection chain=prerouting comment="Mark related traffic that isn’t local with PCC mark rand (2 possibilities) – option 1" connection-state=related disabled=no dst-address-type=!local in-interface=Lan new-connection-mark=wan1_pcc_conn passthrough=yes per-connection-classifier=both-addresses:2/0
add action=mark-connection chain=prerouting comment="Mark related traffic that isn’t local with PCC mark rand (2 possibilities) – option 2" connection-state=related disabled=no dst-address-type=!local in-interface=Lan new-connection-mark=wan2_pcc_conn passthrough=yes per-connection-classifier=both-addresses:2/1
add action=mark-routing chain=prerouting comment="Mark routing for PCC mark – option 1" connection-mark=wan1_pcc_conn disabled=no new-routing-mark=wan-1 passthrough=yes
add action=mark-routing chain=prerouting comment="Mark routing for PCC mark – option 2" connection-mark=wan2_pcc_conn disabled=no new-routing-mark=wan-2 passthrough=yes

/ip firewall nat
add chain=srcnat action=masquerade out-interface=WAN1
add chain=srcnat action=masquerade out-interface=WAN2

Are you trying to provide 4Mbps to 1 user?

I want to combine 2 WAN links to all users

E.g;

4mb + 4mb = 20 users

I have a Dual WAN with static IP's working. The Dual WAN part is working good. I think it is not 100%. I used the following link and made a few changes.
One user cannot get the combined input, but 20 users can get close to the combined input.
http://aacable.wordpress.com/2011/06/04 ... t-by-zaib/

I have 2 internet links with static ips. both are of 2mb.

I need to merge both two links to make it of 4mb.

Please provide solution.

1. Only with MLPPP on both sides (yours + your ISP side) it should work! (2 + 2 = 4)
2. Otherwise you are only able to use a Load Balancing method! (2 + 2 = 2 + 2)
- Session based load balancing
- Service based load balancing
- Policy based routing
- ....

There are different methods for different network schematics and/or designs, I would suggest that you are
taking a look over the MikroTik wiki to find out a method that fit your needs best.


http://wiki.mikrotik.com/wiki/Manual:Lo ... bnet_links
http://wiki.mikrotik.com/wiki/PCC
http://wiki.mikrotik.com/wiki/NTH_load_ ... _approach)
http://wiki.mikrotik.com/wiki/NTH_load_ ... masquerade
http://wiki.mikrotik.com/wiki/ECMP_load ... masquerade

Good luck

Hi all,
I have same problem with 2 Fiber Optic 4/24 Mbps links with /29 subnet on ISP's hardware,I can use the rest IP's. Cannot loadbalance with PCC. Any help will be appreciated.
Thank you in advance

Hi all,
I have same problem with 2 Fiber Optic 4/24 Mbps links with /29 subnet on ISP's hardware,I can use the rest IP's. Cannot loadbalance with PCC. Any help will be appreciated.
Thank you in advance

Policy Based Routing

Try with pcc "both address and port".



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