Title: How to add a route through a specific interface on FreeBSD (10 to 13) Author: Solène Date: 02 May 2016 Tags: freebsd networking Description: If one day under FreeBSD (from 10 to 13 at least) you have a system with multiple IP addresses on the same network and you need to use a specific IP for a route, you have to use the -ifa parameter in the route command. In our example, we have to use the address **192.168.1.140** to access the network **192.168.30.0** through the router **192.168.1.1**, this is as easy as the following. route add -net 192.168.30.0 192.168.1.1 -ifa 192.168.1.140 You can add this specific route like any other route in your rc.conf as usual, just add the -ifa X.X.X.X parameter.