Source Routing

RouterOS General
1

Hi,

i have a mikrotik OS installed on a pc with 4 NIC, named local, isp1,isp2 and wireless.
local is my network, isp1 and isp2 are my internet connections, and wireless is a wifi private network.

my router is configured with default gateway to isp1 active and to isp2 inactive, with NAT.

i have one VoIP server connected at local network.

i need to obbligate all network traffic to and from Voip server going isp2 only.

what i can do?

thanks for help

p.s.
sorry but my english is very little

2

Use mangle firewall rules to tag packets to/from VoIP server, then add routing table rules to specifically route tagged packets to/from isp2 connection. There are examples on how to do this in the routing and mangle sections of the manual.