How to send traffic to a specific address through a different interface?

Question

linux

There is eth0 with an external address 91.х.х.10 through which all traffic goes.
Created an eth0:0 interface with an external address 91.х.х.5
What settings should be made in order to exchange traffic with 195.х.х.10 only through eth0:0 ?

Answer 1

Thanks Pavel for the tip, but the issue was resolved by adding the rule
iptables -t nat -I POSTROUTING -d 195.xx10 -j SNAT --to 91.xx5

Answer 2

Register a route to the necessary address through the necessary interface.
ip routeto help. Man .