This question already has an answer here:
In almost all the network configuration examples I can find, I always see this "network" line appear with an address ending in .0.
auto eth0 iface eth0 inet static address 192.168.1.100 netmask 255.255.255.0 -> network 192.168.1.0 broadcast 192.168.1.255 gateway 192.168.1.1
According to this post, the value can be found by applying the mask to the IP using a logical AND. If this is the case, why does the line even need to be in the file? Can I remove it?