Dual wan for two gateway

RouterOS Beginner Basics
1

Hi, i have this situation:

Port 1 - working ppoe-out1 connection (wan1)
Port 2 - working ppoe-out2 connection (wan2)
Port 5 - LAN

I have 192.168.1.0/24 and 192.168.2.0/24 ip on port5 LAN. I want set gateway of 192.168.1.0/24 to ppoe-out1 and gateway of 192.168.2.0/24 to ppoe-out2.
I tried this

/ip firewall mangle add chain=prerouting src-address=192.168.1.0/24 action=mark-routing new-routing-mark=isp1
/ip firewall mangle add chain=prerouting src-address=192.168.1.0/24 action=mark-routing new-routing-mark=isp2

/ip route add gateway=pppoe-out1 routing-mark=isp1
/ip route add gateway=pppoe-out2 routing-mark=isp2

but not working. Did I do something wrong?

2

First you have two same mangle rules src-address=192.168.1.0/24

You should create two NAT rules

/ip firewall nat add src-address=192.168.1.0/24 out-interface=pppoe-out1 action=masquerade




/ip firewall nat add src-address=192.168.2.0/24 out-interface=pppoe-out2 action=masquerade

IP ROUTE should look something like this:

/ip route add dst-address=0.0.0.0/0 gateway=pppoe-out1 routing-mark=isp1




/ip route add dst-address=0.0.0.0/0 gateway=pppoe-out2 routing-mark=isp2

Be sure to disable fastpath.

This are just quick tips, if you still cant get it to work, post your whole config, so we can help.

3

Ok, now working with your help. Thanks you!
Only one question. Why its necessary disable fastpath?