Props to this site for the helpful info.
1. Configure your first static IP Address and Gateway information as normal inside of /etc/network/interfaces. If you have multiple static IP’s in the same subnet using the same gateway you should be fine to add them as sub-interfaces with no problems.
auto eth0 iface eth0 inet static address 18.104.22.168 netmask 255.255.255.0 network 22.214.171.124 broadcast 126.96.36.199 dns-nameservers 188.8.131.52 184.108.40.206 dns-search yourdomain.com Continue reading "Linux – Policy-Based Routing Enables the Use of Multiple IP Default Gateways"