All traffic to port eth 2

Hi, hope someone can help me.
i have a RB433 and all i want is to route all traffic on port eth1 and eth3 to port eth2.
The eth2 port established a pptp tunnel to a company network (this is already done).
Now all the trafoc of the ports eth1 and eth3 should correspond with the company net.

[eth1 —|
´´´´´´´´´´>-- eth2— via pptp —[WAN-Route] — company net
[eth2 —|

i don’t know how to do this.

There is no filtering required.

Thx for u help

Regardes Mikky

If ether1 and ether3 are localnet IP/masks, then a masquerade rule should do it.
/ip firewall nat add chain=srcnat action=masquerade out-interface=ether2

Thx,
i will try it on monday.