在Perl中为二进制字符串添加一个最简单的方法是什么？

I have a variable that contains a 4 byte, network-order IPv4 address (this was created using pack and the integer representation). I have another variable, also a 4 byte network-order, subnet. I'm trying to add them together and add one to get the first IP in the subnet.I have a variable that contains a 4 byte, netwo