Is there any way of incrementing IP addresses like lets say the user enters 10.xxx.xxx.20 and he wants the next 20 IP so the program should display 10.xxx.xxx.21 10.xxx.xxx.22 and so on until the next 20 IP ??
Not directly; you would need to parse the IP address entered (as a string, normally), extract the numbers, then generate the next 20 addresses from that.
