On Debian it's impotant (sequence ip in file /etc/network/interfaces) because after restarted server firs ip in file /etc/network/interfaces becomes like source ip
ip route show
100.100.100.0/24 dev eth0 proto kernel scope link src 100.100.100.110
src 100.100.100.110 - it's first ip in file /etc/network/interfaces
On Debian it's impotant (sequence ip in file /etc/network/interfaces) because after restarted server firs ip in file /etc/network/interfaces becomes like source ip
ip route show
100.100.100.0/24 dev eth0 proto kernel scope link src 100.100.100.110