multi wan load balancing - ADSL, DSL, Cable modem

RouterOS General
1

I need a solution how to setup 3 WAN ports from 3 different ISPs (PPPoE, Leased Line and Cable internet), so clients can use all of them with load balancing based either on least used bandwidth or round robin. I don’t want to separate clients in groups, but all of them should have access to all 3 WANs. If some of the WANs fall, the clients should be admitted to use only the working WANs. (WANs with positive uplink).

I had read some WIKIs about load balancing, but cannot find solution for my problem. I want to acknowledge that my requirement already works fine with Level1 FBR-4000 which have 4 WAN ports but is very slow and have freeze problems with QoS or bandwidth limiting.

I have router board RB493 with Mikrotik OS 3.11

Sorry for my English

Multi PPPOE Supply
2

try to search
http://forum.mikrotik.com/search.php?st=0&sk=t&sd=d&keywords=load+balancing
take for example this article:
http://wiki.mikrotik.com/wiki/Load_Balancing_over_Multiple_Gateways
but if you don like group users, try to make as follow:

/ip firewall mangle
add action=mark-routing chain=prerouting comment="" disabled=no new-routing-mark=ISP_A passthrough=yes random=33 \
    src-address=10.0.0.0/24
add action=mark-routing chain=prerouting comment="" disabled=no new-routing-mark=ISP_B passthrough=yes random=33 \
    src-address=10.0.0.0/24
add action=mark-routing chain=prerouting comment="" disabled=no new-routing-mark=ISP_C passthrough=yes random=33 \
    src-address=10.0.0.0/24

This action will do somthing like equal bandwidth sharing for 3 ISP with 33% balance in theory. 10.0.0.0/24 - is you customers (users) subnetwork for example.

3

Can someone post a configuration or simple walk-trough for multi wan configuration ?

The wiki about Load Balancing over Multiple Gateways does not solve the problem because If i divide the users in two or more groups I can use two or more stand alone routers.

And I need multiple interfaces not gateways because ADSL and Cable modem are using PPPoE and have dynamic IP addresses and gateways.

4

The solution you need is called ECMP (Equal Cost Multipath). At the moment, the ECMP in MikroTik doesn’t do any good. You can read some topics down in this forum. I’m waiting from some time now to have a fix from MikroTik about this, but until now ECMP is unusuable. :frowning::(:frowning: