i have assigned to setup a LAN(with one linux server and windows clients ) and i have very less knowledge of linux. i have given a server computer with redhat8.
the server computer has only one ethernet card eth0 and i need to assign five different ip schemes of different subnets mask, all of class c, with one public ip of class c.

i assigned wrong ip schemes to lan card eth0 now i am trying to delete this setting and reassigning new static ip schemes. on a single ethernet card.

i don't know how to do this . i am not supposh to use dhcp.
pls guide me to come out of this problem.

kind regards
vivek